Daphnella inangulata, Li & Li, 2014

Li, Baoquan & Li, Xinzheng, 2014, Report on the Raphitomidae Bellardi, 1875 (Mollusca: Gastropoda: Conoidea) from the China Seas, Journal of Natural History 48 (17), pp. 999-1025 : 1008-1009

Daphnella inangulata sp. nov.

( Figure 1B )

Type material

Holotype: SCS. 1 spec, 20°15 ′ N, 109°30 ′ E, sandy mud, 31 m, 28 January 1959, Registry number MBM-Li, deposited in MBMCAS.

Description

Shell large, fusiform, with tall spire, spire with height about as long as combined height of aperture and siphonal canal. Body whorl obviously enlarged, suture narrow, distinct. Spiral whorls eight, including five teleoconch whorls, cancellated by sinuous fine axial and spiral ribs; and three protoconch whorls, worn to a certain extent, especially the first two protoconch whorls, the last whorl with less cancellate sculpture. Overall sculpture of dense axial and spiral ridges, rendered cancellate and granulose by crossing of even denser axial ribs. With large, wide, sinuous aperture, base of columella slightly foreshortened; siphonal canal wide, fusiform, not indented. Outer lip thin, with weakly notched edge; anal sinus openly, very widely concave, presenting a converse L subsutural. Uniformly light yellowish brown.

Etymology

“in-”, Latin, non, lack. The specific name refers to the close similarity of the new species with Daphnella angulata .

Distribution

Only known from the type locality SCS, China .

Remarks

The species is very similar to Daphnella angulata Habe and Masuda, 1990 , but differs from the latter by the shell shape. In Higo et al. (2001): fig. G. 3856), the figures of the holotype of D. angulata show that the angle on the spire is above the middle on spire whorls, instead of the base as in our specimen; the spire whorls of the present type specimen are not shouldered as those in the holotype of D. angulata ; the spiral ridges of the present specimen are coarser than those of the holotype of D. angulata . Additionally, our specimen is more biconical in shape than the holotype of D. angulata .

Figures

Figure 1. Species of familyRaphitomidae. (A) Asperdaphne paramoretonica sp. nov. (Holotype SCS, CN L72B-39); (B) Daphnella inangulata sp. nov. (Holotype locality, SCS); (C) Daphnella interrupta Pease, 1860 (SCS, CN 63M-253); (D) Daphnella cf. suluensis Schepman, 1913 (ESC, CN V520A); (E, F) Eucyclotoma cymatodes (Hervier 1897a) (Nansha Islands, CN 93NS8-3; Xisha Islands, CN 58M-1542); (G) Eucyclotoma tricarinata (Kiener 1840) (Xisha Islands, CN 58M-1642); (H) Eucyclotoma sp. (Xisha Islands, CN 58 M–1542–1).