Cylichnoides scalptus
Authors/Creators
Description
Cylichnoides scalptus (Reeve, 1855)
Figs 3A; 6A–H; 7A–J
Bulla scalpta Reeve, 1855, p. 392 –393, pl. 32, figs 3a, b, c.
Cylichna scalpta (Reeve, 1855): Leche, 1878, p. 73, tab. 1, fig. 22.
Cylichna (Bullinella) scalpta (Reeve, 1855): Filatova, Zatsepin, 1948, p. 394, pl. 53, fig. 8.
Cylichna occulta (Mighels et Adams, 1842): Pilsbry, 1893, p. 292 (part.), fig. 35; Lemche, 1956, p. 225, pl. 1, fig. 3, 4 (non Mighels et Adams).
Cylichnoides scalpta (Reeve, 1855): Chaban, 2001, p. 108; Chaban, 2004, p. 82 –83, fig. 5E, F; Chaban, 2010, p. 75 –76, fig. 6.4; Chaban, Martynov, 2006, p. 254, pl. 126, fig. F; Nekhaev, 2014, p. 110, fig. 15D.
Type locality. Spitsbergen.
Type s p e c i m e n s. Lost [Lemche, 1948].
Material studied. Barents Sea: R / V «Persey»: station 862, 22.IX.1927, 73º59′ N, 63º25′ E, depth 79 m – 2 specimens; station 866, 22.IX.1927, 75º21′ N, 65º10′ E, depth 340 m – 1 specimen; Kara Sea: icebreaker «Rusanov», 1932, station 20, 70º47′ N, 63º59′ E, depth 130 m, mud – 7 specimens; icebreaker «Sedov», 1934, station 51, 77º28′ N, 86º32′ E, depth 112 m, mud and sand – 20 specimens; icebreaker «Fyodor Litke», 29.IX.1948, station 183, 80º30′ N, 90º03′ E, depth 174 m, mud – 11 specimens; Laptev Sea: R / V «Polarstern», 07.IX.1993, station 43, 77º24′ N, 133º32′ E, depth 55 m – 16 specimens; East-Siberian Sea: R / V «Ivan Kireev», 2004, station 87, 69º31′ N, 170º25′ E, depth 11 m – 1 specimen; station 106, 70º28′ N, 171º36′ E, depth 31 m – 1 specimen.
D e s c r i p t i o n. Shell wide-cylindrical, up to 11.5 mm height, spiral striations very narrow, engraved, apex impressed and wide, mostly umbilicated, columellar margin narrow, oblique (Figs 7G–J).
Anatomy. Male copulatory system consists of the narrow prostate and long penial sac, which is joined with prostate by a narrow proximal part (Fig. 3A). Lateral teeth have uneven denticles, which do not form a plate on the base of the tooth (Figs 7A, E). Rachidians bilobate, slightly convex, equipped with short widely spaced denticles on cutting edge, upper-lateral ends without notches (Figs 7B–D).
D i s t r i b u t i o n. Arctic species, distributed from Baffin Bay eastward to the East-Siberian Sea.
N o t e s. C. scalptus differs from both C. occultus and C. validus in shell, penial and radular morphology (see Table 1). It is not found to the east of the East-Siberian Sea.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- R, V
- Event date
- 1927-09-22 , 1993-09-07
- Verbatim event date
- 1927-09-22 , 1993-09-07
- Scientific name authorship
- Reeve
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Cephalaspidea
- Family
- Eoscaphandridae
- Genus
- Cylichnoides
- Species
- scalptus
- Taxon rank
- species
- Taxonomic concept label
- Cylichnoides scalptus (Reeve, 1855) sec. Chaban, 2016
References
- Leche W. 1878. Ofversight ofver de af Svenska Expeditionerna till Novaja Semlja och Jenissej 1875 och 1876 issamlade Hafs-Mollusker // Handlingar Svenska Vetenskaps-Akademiens. V. 16, N 2. P. 1 - 86.
- Filatova Z. A., Zatsepin V. I. 1948. Classis Gastropoda // Guidebook to Fauna and Flora of the Northern Seas of the USSR. N. S. Gaevskaya (Ed.). Moscow: Sovetskaya Nauka. P. 358 - 401. [In Russian].
- Mighels J. W., Adams C. B. 1842. Descriptions of twenty-four species of the shells of New England // Boston Journal of Natural History. V. 4, N 1. P. 37 - 54.
- Pilsbry H. A. 1893. Manual of Conchology; Structural and Systematic. Vol. 15. G. W. Tryon (Ed.). Philadelphia. 436 p.
- Lemche H. 1956. The anatomy and histology of Cylichna (Gastropoda, Tectibranchia) // Skrifter udgivet af Universitetets Zoologiske Museum, Kobenhavn. V. 16. P. 1 - 278.
- Chaban E. M. 2001. Subclass Opisthobranchia: Cephalaspidea, Anaspidea, Acochlidiida, Sacoglossa, Thecosomata, Gymnosomata // Check-List of Species of Free-Living Invertebrates of the Russian Far Eastern Seas. B. I. Sirenko (Ed.). St. Petersburg: Zoological Institute, Russian Academy of Sciences. P. 108 - 109. (Explorations of the Fauna of the Seas. V. 75 (83 )).
- Chaban I. М. 2004. Cephalaspidean mollusks (Mollusca, Opisthobranchia) of the Laptev sea // Explorations of the Fauna of the Seas. V. 54 (62). P. 71 - 87. [In Russian].
- Chaban I. М. 2010. Cephalaspidean mollusks (Gastropoda, Opisthobranchia) of the East Siberian Sea // Explorations of the Fauna of the seas. V. 66 (74). P. 71 - 88. [In Russian].
- Chaban I. М., Martynov A. V. 2006. Clade Cephalaspidea // Yu. I. Kantor, A. V. Sysoev. Marine and Brackish Water Gastropoda of Russia and Adjacent Countries: an Illustrated Catalogue. Moscow: KMK Scientific Press Ltd. P. 250 - 261.
- Nekhaev I. O. 2014. Marine shell-bearing Gastropoda of Murman (Barents Sea): an annoteted check-list // Ruthenica (Russian Malacological Journal). V. 24, N 2. P. 75 - 121.
- Lemche H. 1948. Northern and Arctic tectibranch gastropods // Det Kongelige Danske Videnskabernes Selskab Biologiske Skrifter, Kobenhavn. V. 5, N 3. P. 1 - 136.