Cylichnoides scalptus (Reeve, 1855)

Chaban, E. M., 2016, Opisthobranch molluscs of « Cylichna occulta group » (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters, The Bulletin of the Russian Far East Malacological Society 20, pp. 5-26 : 18-21

publication ID

https://doi.org/ 10.5281/zenodo.11087801

DOI

https://doi.org/10.5281/zenodo.11620774

persistent identifier

https://treatment.plazi.org/id/C85AF226-FF82-FFE3-BC80-FCA8FBAD1B4E

treatment provided by

Felipe

scientific name

Cylichnoides scalptus (Reeve, 1855)
status

 

Cylichnoides scalptus (Reeve, 1855) View in CoL

Figs 3A View Fig ; 6A–H View Fig ; 7A–J View Fig

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) View in CoL : 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 GoogleMaps ; 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 GoogleMaps ; East-Siberian Sea: R / V «Ivan Kireev», 2004, station 87, 69º31′ N, 170º25′ E, depth 11 m – 1 specimen GoogleMaps ; 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 View Fig ).

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 View Fig ). Lateral teeth have uneven denticles, which do not form a plate on the base of the tooth ( Figs 7A, E View Fig ). Rachidians bilobate, slightly convex, equipped with short widely spaced denticles on cutting edge, upper-lateral ends without notches ( Figs 7B–D View Fig ).

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 View Table 1 ). It is not found to the east of the East-Siberian Sea.

R

Departamento de Geologia, Universidad de Chile

V

Royal British Columbia Museum - Herbarium

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Cephalaspidea

Family

Eoscaphandridae

Genus

Cylichnoides

Loc

Cylichnoides scalptus (Reeve, 1855)

Chaban, E. M. 2016
2016
Loc

Cylichnoides scalpta (Reeve, 1855)

Nekhaev I. O. 2014: 110
Chaban I. 2010: 75
Chaban I. & Martynov A. V. 2006: 254
Chaban I. 2004: 82
Chaban E. M. 2001: 108
2001
Loc

Cylichna (Bullinella) scalpta (Reeve, 1855)

Filatova Z. A. & Zatsepin V. I. 1948: 394
1948
Loc

Cylichna occulta ( Mighels et Adams, 1842 )

Lemche H. 1956: 225
Pilsbry H. A. 1893: 292
1893
Loc

Cylichna scalpta (Reeve, 1855)

Leche W. 1878: 73
1878
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