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Embryonic or larval shell of some molluscs
A protoconch (meaning first or earliest or original shell of a gastropod) is an embryonic or larval shell which occurs in some classes of molluscs, e.g
Protoconch
Adult shell of molluscs
"adult" shell, as opposed to the protoconch, which is the embryonic or larval shell. The point where the protoconch ends and the teleoconch begins is
Teleoconch
Species of gastropod
shells show a long tower-shaped protoconch or embryonic shell of 5 whorls, which is usually lost in the adult. This protoconch is about 2.5 cm long and looks
Syrinx_aruanus
Complete revolution in the shell of a mollusc
the shell Protoconch—a larval shell of a mollusc; also refers to protoconch whorls of an adult shell Teleoconch—whorls beyond the protoconch Nepionic whorls :
Whorl_(mollusc)
Extinct, squid-like, Mesozoic cephalopods
consisted of an ovoid protoconch and several chambers. The protoconch had two layers, and several compartments - called "protoconch pockets" - formed between
Belemnitida
Part of the body of a gastropod or snail
whorls known as the protoconch, which is often quite distinct from the rest of the shell and has no growth lines. From the protoconch, which forms the apex
Gastropod_shell
Part of a mollusc shell
on the page. The spire, when it is not damaged or eroded, includes the protoconch (also called the nuclear whorls or the larval shell), and most of the
Spire_(mollusc)
Species of gastropod
molecules. In this way the larval shell (protoconch) is formed. The construction of the haliotid protoconch is complete following torsion. These structures
Haliotis_asinina
Novel characteristic of larval gastropods
Trochophore of Haliotis asinina with calcified protoconch (pc) prior to torsion.
Torsion_(gastropod)
Larval shell of a mollusk
etc.). (The homologous structure in gastropods (snails) is called the protoconch.) The prodissoconch is often but not always smooth, and has no growth
Prodissoconch
Possible simple urbilateran candidate
organism inside a tube secreted from the embryonic form as a dome or protoconch, a semi-metamerism derived from the formation of mesoderm from the gastrovascular
Urbilaterian
Extinct genus of shelled animals
Bactrotheca is an extinct genus of orthothecid hyolith with a bulbous "protoconch". DZIK, J. 1980. Ontogeny of Bactrotheca and related hyoliths. GFF, 102
Bactrotheca
Fossil order of cephalopods
more primitive nautiloids by the small size and globular shape of the protoconch, the so-called embryonic shell. Nautiloids have relatively large embryonic
Bactritida
Species of gastropod
end of the protoconch. It is also strongly sculptured (mamillated), and at the end of the protoconch oblique striae can be seen. The protoconch is irregularly
Alycaeus_rolfbrandti
Species of gastropod
9 whorls, of which the protoconch forms four. The whorls are flatly rounded and with an impressed suture. The smooth protoconch is sinusigera in form,
Iredalea_subtropicalis
Genus of gastropods
Chrysallidinae, a large taxon of minute marine gastropods with an intorted protoconch. Dall & Bartsch (1904: 10) misinterpreted this genus and described it
Trabecula_(gastropod)
Part of the shell of a mollusk
or protoconch is situated, if that is still present in the adult shell (often it is lost or eroded away). The phrase apical whorls, or protoconch, means
Apex_(mollusc)
Species of gastropod
bulb of the protoconch is opaque white. In some individuals the yellow colour may fade post mortem to a pale apricot‑brown. The protoconch is as in Tylorhaphe
Tylorhaphe_wallacei
Species of sea snail
Conus leekremeri Shell and protoconch of Conus leekremeri (specimen at the Smithsonian Institution) Conservation status Data Deficient (IUCN 3.1) Scientific
Conus_leekremeri
Species of gastropod
a "candy‑stripe" pattern. The protoconch is usually whitish or pale, but occasionally it is almost black. The protoconch is typical for the subfamily Umboniinae
Ethminolia_hickmanae
Species of gastropod
Anatomidae. The generic position is uncertain: Anatoma or Thieleella (protoconch sculpture unknown) The size of the shell varies between 2 mm and 3 mm
Anatoma_maxima
Genus of gastropods
towards the apex. The shell cross-section is elliptical to triangular. The protoconch is distinct and globular or elliptical, often bearing a spine at its tip
Clio_(gastropod)
Extinct species of gastropod
Pyrgospira ostrearum (Stearns, 1872). The spire is acute with 2 whorls in the protoconch followed by seven subsequent whorls. The 2 earlier whorls show well-marked
Crassispira_calligona
Species of gastropod
having 1.5 whorls (repeating spirals or circles) when it is a protoconch. The protoconch is finely pitted and granular and collectively radiates from the
Angustopila_dominikae
Extinct order of molluscs
slim, conical shell with a large living chamber, simple aperture. The protoconch (initial, embryonic chamber) is egg-shaped and separated from the phragmocone
Aulacocerida
Extinct order of molluscs
ancestor. The pseudorthocerids are thought to be distinct because their protoconch and septal necks significantly different than orthocerids. Orthocerids
Orthocerida
Species of gastropod
and possessing a complex pattern of spiral sculpture that ends on the protoconch and is replaced by spiral rows of small punctae on the teleoconch. Coloration
Atlanta_brunnea
Species of gastropod
consisting of two whorls. The protoconch has fewer than one whorl, transitioning seamlessly into the teleoconch. The protoconch features a prominent broad
Ammonicera_consilii
Species of terrestrial gastropod from Brazil
reddish-ochre color and a characteristic pale subsutural band and darker protoconch. Anatomically, it is notable for a long convoluted penis with two flagella
Megalobulimus_dryades
Species of sea snail
The color of the shell is white, becoming more opaque with age. The protoconch has one whorl and the teleoconch has six to seven whorls. (Original description)
Rissoina_crassa
Species of gastropod
patterns such as spiral lines, bicolored bands, and axial markings. Its protoconch has a distinctive net-like sculpture, typical of the genus and related
Drymaeus_poecilus
Clade of sea snails
of California Press, 331–383. Bandel, K. & Dockery, D.T. III (2012): Protoconch characters of Late Cretaceous Latrogastropoda (Neogastropoda and Neomesogastropoda)
Neogastropoda
Species of gastropod
horn to white in some specimens at the point where the whorls of the protoconch and the teleoconch join. In some other specimens the change is continued
Olivella_nana
Clade of gastropods
snails, is primarily characterized by a shell which has a heterostrophic protoconch, in other words the apical whorls are coiled in the opposite plane to
Heterobranchia
Family of sea snails
appear to be coiled in the opposite direction to those of the teleoconch) protoconch, which is often pointed sideways or wrapped up. The teleoconch is dextrally
Pyramidellidae
Species of gastropod
constricted by subsutural callous tubercle. Hemilienardia acinonyx has a protoconch which is white, narrowly conical, of 2.3 evenly convex whorls. PI whorls
Hemilienardia_acinonyx
Species of gastropod
Buccinidae but differ in having a distinctive protoconch morphology with striking semilunar axial riblets. The protoconch is the embryonic or larval shell that
Amiantofusus_cartilago
Subgenus of gastropods
small operculum. The shoulder of the shell is usually nodulose and the protoconch is usually multispiral. Markings often include the presence of tents except
Conus_(Phasmoconus)
Species of sea snail
white, with a chestnut-brown protoconch. The shell contains six somewhat convex whorls with a suture well-marked. The protoconch is composed of four whorls
Lusitanops_bullioides
Species of sea snail
convex whorls, separated by a well-marked suture. The three whorls of the protoconch are finely reticulated. The subsequent whorls are crossed by many regular
Lusitanops_blanchardi
Genus of gastropods
tentacles, proportionally smaller heads and snouts, teleoconch-parallel protoconch coiling axis, thinner, longer, spineless egg casings, taller shell spires
Recluzia
Genus of gastropods
in the Paleocene. The fusiform, patterned shell is small to large. The protoconch is smooth and papilliform, often with a calcarella. The columellar plates
Scaphella
Species of gastropod
Clavatula debilis The shell and the protoconch of Clavatula debilis Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Subclass:
Clavatula_debilis
Clade of molluscs
modern coleoids, rather than the K-selected strategy of the nautilus. The protoconch, or initial chamber, lacks a cicatrix, a scar left by the original organic
Neocephalopoda
Genus of gastropods
Chrysallidinae, a large taxon of minute marine gastropods with an intorted protoconch. Tragula falcifera (Watson, 1881) Tragula fenestrata (Jeffreys, 1848)
Tragula
Class of molluscs
sediment as the snail crawls. The larval shell of a gastropod is called a protoconch.[citation needed] Most shelled gastropods have a one piece shell (with
Gastropod
Family of sea snails
the multispiral protoconch, which shows spiral striae on protoconch I and diagonally cancellated ("raphitomine") sculpture on protoconch II. Some species
Raphitomidae
Species of gastropod
Shell showing posterior end, with spire and protoconch, and right side of the shell
Cypraecassis_rufa
Species of gastropod
normally whitish, although the apical bulb of the protoconch is very occasionally dark. The protoconch is typical for the subfamily Umboniinae, with a diameter
Parminolia_agapeta
Genus of molluscs
smooth or transversely sculptured surface, and large apically pointed protoconch. The siphuncle is central with very short suborthochoanitic septal necks
Arionoceras
Species of gastropod
last whorl. The shell structure is divided into distinct sections. The protoconch (the embryonic shell) consists of about two whorls and is nearly smooth
Alycaeus_goliath
Extinct species of gastropod
5 mm, its diameter 2.7 mm. The shell is medium-sized and slender. Its protoconch is relatively large and stout with a small tip and consists of about three
Cryoturris_etrema
Species of gastropod
nitens range from 7 to 17 mm in length. The species has a multispiral protoconch, a relatively long aperture, and a smooth shell surface except for spiral
Cosmioconcha_nitens
Genus of gastropods
that typically measure in the adult state 1 mm or even less in size. The protoconch is characterized by distinct ridges and grooves. The teleoconch typically
Ammonicera
Species of sea snail
spire white with evenly-spaced, dark brown, crescent-shaped flammules; protoconch and early whorls yellow; interior of aperture white with 2 brown bands
Conus_kirkandersi
Species of gastropod
greenish white. it contains about six whorls. The first whorl of the protoconch is flattish, minute, apparently smooth. The second whorl shows a sharp
Oenopota_maurellei
Species of gastropod
this broken shell may have been 12 mm long. The holotype consists of the protoconch and two subsequent whorls. This marine species occurs off Natal, South
Daphnella_phyxelis
Species of gastropod
2 mm and 3 mm. The shell is conical and pear-shaped with an angulated protoconch. The teleconch has about 3 convex whorls, quickly increasing in width
Alvania_nonsculpta
Species of gastropod
trochiform protoconch, sculptured with vertical riblets decussated by delicate, obliquely forward-descending striae. The junction of the protoconch and the
Kermia_chichijimana
Genus of gastropods
and externally, together with a shallow subperipheral concavity. The protoconch is relatively large, with a diameter of 195–230 µm. The operculum is corneous
Tylorhaphe
Species of gastropod
significance in the United States. The snail has a bulbous, large, and broad protoconch, with a white or bluish-white columella, parietal wall, and outer lip
Archachatina_marginata
Species of gastropod
exhibit partial brown coloring on the upper whorls (specifically the protoconch and first teleoconch whorl) or a single subsutural brown spot just before
Alvania_internodula
Species of gastropod
with about 12 spiral rows of somewhat squarish brown dots. The large protoconch is tan. The aperture of the shell is almost 3/4 of the length of the shell
Scaphella_junonia
Species of gastropod
specimens. The protoconch and apical whorls are usually whitish, but may occasionally be yellowish, pink, brown, or almost black. The protoconch is typical
Ethaliella_rhodomphala
Species of gastropod
family Rissoidae. The length of the shell attains 1 mm. This species has a protoconch with a spiral design. This species occurs in the Caribbean Sea off Aruba
Alvania_moolenbeeki
Species of gastropod
narrowly umbilicate. The shell contains six whorls six, two being in the protoconch, slantingly angled in a gradate manner. The surface is closely acutely
Vanitrochus_tragema
Distal portion of the forelimb of an animal
Squid giant synapse Developmental stages: Spawn → Paralarva (Doratopsis stage) → Juvenile → Subadult → Adult • Egg fossils • Protoconch (embryonic shell)
Manus_(anatomy)
Genus of gastropods
a voluminous taxon of minute marine gastropods with a heterostrophic protoconch. According to Gary Rosenberg's Malacolog however, "Odetta" is not a valid
Odetta_(gastropod)
Extant subclass of cephalopods
attachment types. Other traits referenced during this reclassification include protoconch morphology, connecting ring structure, and the extent of cameral and endosiphuncular
Nautiloid
Species of gastropod
subdiaphanous to milk white. Its length measures 3 mm. The 2½ whorls of the protoconch are helicoid but slightly elevated and well rounded. Their axis is at
Turbonilla_muricatoides
Genus of gastropods
debatable. The type species of Besla has a protoconch axis at 90° with that of teleoconch ("type A protoconch") whereas that of Parthenina is tilted nearly
Parthenina
Species of gastropod
(Original description in Latin) The large white shell is transparent. The protoconch is very sharp. The shell contains 10 whorls. The sculpture shows several
Zebinella_albida
Species of sea snail
Conus milneedwardsi Shell and protoconch of Conus milneedwardsii (specimen at the Smithsonian Institution) Conservation status Least Concern (IUCN 3.1)
Conus_milneedwardsi
Species of sea snail
with flat sides; shell shape is not known to vary in this species. The protoconch is paucispiral with two whorls, and fluted nodules are present on the
Conus_nybakkeni
Species of gastropod
three to four ventricose-whorled, beautifully cancellate, ochre-colored protoconch. The whorls of the spire are impressed at the suture and angulate in their
Pleurotomella_itama
Species of mollusc
0.96), white, turbiniform,formed by 3 ¾ whorls, narrowly umbilicate. Protoconch of ¾ whorls, apex sharp. Teleoconch of 3 whorls, the last one very wide
Parviturbo_tuberculosus
Species of gastropod
spire is thin and glossy, covering all the whorls, including most of the protoconch, which makes accurate measurements difficult. It has distinct spiral lirae
Amalda_bellonarum
Species of gastropod
elongate-conic shape. The length measures 6.1 mm. The two whorls of the protoconch are small. They are planorboid, having their axis at right angles to that
Orinella_africana
Species of gastropod
more whorls. The spire is acute, a little shorter than the aperture. The protoconch consists of three elevated whorls, milk-white, glassy, smooth, abruptly
Fusiturricula_fusinella
Species of gastropod
(Original description) The oval shell has a rather acute spire. The protoconch is glassy, dark brown and is inflated. It consists of 1½ whorls, followed
Tenaturris_bartlettii
Species of gastropod
claviform shell has a length of 8.8 mm, its diameter 3.6 mm. The smooth protoconch is small (height about 0.8 mm) and consists of 1+2⁄3 whorls, the teleoconch
Splendrillia_skambos
Species of sea snail
whorls and another in a sub-peripheral position on the body whorl. The protoconch comprises 3¼ smooth yellowish whorls. The initial whorl is minute and
Glyphostoma_coronaseminale
Species of gastropod
ramp of spire whorls, body whorl bi-angulate, teleoconch of 5 Whorls, protoconch of 1½ smooth embryonic whorls. Sculptured with elevated and angulate axial
Austromitra_lacertosa
Genus of cephalopods
ridge on the dorsal surface. The phragmocone (internal shell) has a small protoconch at its tip, and fit into the cavity and the guard. It also had septa and
Belemnitella
Species of gastropod
and smooth with length varying between 2 mm and 5 mm(4.5 whorls). The protoconch consists of one whorl and the teleoconch whorls with a concave region
Oenopota_carioca
Species of gastropod
thirteen whorls. These are of a dull ashen color and unpolished surface. The protoconch is missing. The succeeding whorls are transversely sculptured by twelve
Hindsiclava_polytorta
Species of gastropod
rather turreted and constricted at the base. Its colour is white, the protoconch buff. On the upper whorls an orange line runs along the second spiral
Kermia_harenula
Species of gastropod
the turrids and allies. The shell reaches 30 mm (1.2 in) in length. The protoconch consists of two smooth whorls. The eight subsequent whorls contain thirteen
Ptychobela_zebra
Genus of gastropods
Austroharpa, and Austrolithes, new genera; with some remarks on the gastropod protoconch. Transactions of the Royal Society of New Zealand. 62(1): 7-19. v t e
Austroharpa
Species of gastropod
Phasianellidae. The size of the shell varies between 8 mm and 32 mm. Protoconch is smooth and the shell is brilliant, long, thin and turban-shaped, usually
Phasianella_solida
Species of gastropod
The next-to-last whorl is expanded and broader than the last whorl. The protoconch is not clearly discernible. The teleoconch shows streaks of uneven growth
Laoennea_renouardi
Species of gastropod
Anatomidae. The species name ‘declivis’ refers to the sloping shoulders. The protoconch consists of a single flat whorl with a pointed nucleus and coarsely pitted
Anatoma_declivis
Species of gastropod
description) The shell is six-whorled, with a length of 5.75 mm. The protoconch is clear brown, with three whorls, on most of which there are scalar ridges
Benthomangelia_antonia
Subclass of gastropods
In all modern neritomorphs except neritopsids, the inner walls of the protoconch are resorbed. Unlike most other gastropods, neritomorphs typically have
Neritimorpha
Species of gastropod
shell is small and cone-shaped made of two swirls, called the protoconch. On this protoconch there are fine lines very close to each other. The opening of
Struthiolaria_papulosa
Species of gastropod
chocolate spiral lines or bands to a complete chocolate hue. The shell's protoconch features two to three smooth helicoid whorls, and its overall sculpture
Guraleus_brazieri
Latrogastropoda. Fossils recognizable as latrogastropods due to their protoconch are known as far back as the Aptian stage of the Cretaceous. Tonnoidea
Latrogastropoda
Species of gastropod
400 mm on mainland locations, to 200 mm off island and seamount sites. The protoconch is multispiral, normally eroded except on very juvenile specimens. The
Charonia_lampas
Species of land snail
78 mm (0.031 in)). The shell's spire is slightly raised, and the small protoconch has 1.75 whorls with the first whorl having seven spiral lirae. The shells
Climocella_isolata
Species of gastropod
Abyssochrysidae. Shell large, solid, slender consisting of 15 whorls. Apex (protoconch and an indeterminate number of early teleoconch whorls) corroded. Early
Abyssochrysos_bicinctus
PROTOCONCH
PROTOCONCH
PROTOCONCH
PROTOCONCH
Female
Arthurian
, bosom white; white breast.
Girl/Female
Assamese, Gujarati, Hindu, Indian, Sanskrit
Happiness; Daughter; Flower; Goddess Durga; Great Achiever
Girl/Female
Hindu, Indian, Marathi
Very Calm; Placid
Surname or Lastname
English
English : variant spelling of Roebuck.
Boy/Male
German
Gifted Ruler; Variant of Diederick; Ruler of the People
Boy/Male
Hindu
The initiated
Girl/Female
Tamil
Bavishyasri | பவீஷà¯à®¯à®¸à®°à¯€Â
Boy/Male
Tamil
Ananay word has been used by Lord Sri Krishna in Gita in association with focused worship Ananay Bhakti
Boy/Male
Hindu, Indian
Character; Earth
Girl/Female
Muslim
Hidden, Inner
PROTOCONCH
PROTOCONCH
PROTOCONCH
PROTOCONCH
PROTOCONCH
n.
The embryonic shell, or first chamber, of ammonites and other cephalopods.
n.
A minute tube found in the protoconch of ammonites, and not connected with the true siphon.