Bulinus jacobi (Sowerby I, 1833)

Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 79

Bulinus jacobi (Sowerby I, 1833) Figs 13B-C , L31i

Bulinus jacobi Sowerby I 1833: 74; Sowerby I 1833 [ Sowerby I and II 1832-1841]; fig. 45.

Bulimus jacobi ; Reeve 1848 [1848-1850]: pl. 21 fig. 135.

Type locality.

"ad Insulam Jacobi, inter Gallapagos".

Label.

"Galapagos Is." [1842.5.10.250-252], "James I. Galapagos" [20100648], both in E.A. Smith’ handwriting. M.C. label style III, V.

Dimensions.

"long. 0.55, lat. 0.3 poll. [H 13.9 D 7.6 mm]"; figured specimen herein H 11.9, D 6.8, W 5.7.

Type material.

NHMUK 1842.5.10.250-252, three possible syntypes; 20100648, four possible syntypes (Cuming coll.).

Remarks.

The two lots originating from the Cuming collection are considered possible syntypes. One specimen from lot 20100648 corresponds to Reeve’s figure. There is one additional specimen (NHMUK 1837.4.8.33.576), which according to the registration book, was "purchased from Mr. Eling, Deptford, from Capt Fitzroy’s vessel"; this is not considered as type material but may have been collected by Darwin on his voyage with the ‘Beagle’.

Current systematic position.

Bulimulidae , Naesiotus jacobi (Sowerby I, 1833).

Figures

Figure 13. Naesiotus species. A Naesiotus unifasciatus (Sowerby I, 1833), lectotype NHMUK 1975187 (H = 20.4) B-E Naesiotus jacobi (Sowerby I, 1833) B possible syntype NHMUK 1842.5.10.250 (H = 11.9) C sculpture on dorsal side of ultimate whorl D syntype of Bulimulus (Naesiotus) pallidus Reibisch, 1892 NHMUK 1894.5.8.3 (H = 11.37) E sculpture on dorsal side of (pen) ultimate whorl F Naesiotus albemarlensis Dall, 1917, possible paratype NHMUK 1937.6.18.13 (H = 14.5) G-H Naesiotus curtus (Reibisch, 1892), syntype NHMUK 1894.6.8.8 (H = 9.6) H sculpture on dorsal side of (pen) ultimate whorl I Naesiotus perspectivus (Pfeiffer, 1846), lectotype NHMUK 1975166 (H = 15.7) J Naesiotus darwini (Pfeiffer, 1846), possible syntype NHMUK 20100523 (H = 8.64). All enlarged.

Figure L 31. Labels. i Bulinus jacobi Sowerby I, 1833 ii Bulimus jonasi Pfeiffer in Philippi 1846 iii Bulimus josephus Angas, 1878 iv Bulimus juarezi Pfeiffer, 1866 v Bulimus jussieui Pfeiffer, 1846 vi Bulimus juvenilis Pfeiffer, 1855.