972 



W. O. CERNOHORSKY 



ca. 32 primary spiral striae on the body whorl and 14 on the penultimate whorl; 

 interstices of main spiral striae are further sculptured with intermediate spiral 

 threads and axial striae. The aperture is moderately wide, smooth vvithin, the 

 labial lip is simple and the columella has 6 folds. 



Lamarck's original locality indication of " coasts of Africa " is erroneous, and 

 was corrected by Lamarck (1822) to " American Seas ", which is, broadly speaking, 

 correct. Mitra sîrîatula is a synonym of the Caribbean- Atlantic M. barbadensis 

 (Gmelin, 1791). Voluta striatula Schrôter, 1804, is the same as Lamarck's species. 



Mitra subulata Lamarck, 1811 

 (Fig. 27) 



1811. Mitra subulata Lamarck, Ann. Mus. d'Hist Nat., 17:211, No. 39 

 1822. Mitra subulata Lamarck, Anim. s. vert., 7:313 



1838. Mitra subulata Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 82, 

 pl. 24, fig. 76, 76 



Habite...; mon cabinet; length 36mm; mss. 1 ex. — Collection Lamarck, 

 Geneva: 3 spécimens. 



According to Rosalie de Lamarck's mss. annotation, only the holotype has 

 been in her father's collection at the time of description. Spécimen No. 1 102/65/3: 

 36.1 X 8.9 x 14.2 mm, is the holotype, and the other two spécimens in the collection 

 No. 1102/65/1: 49.3 mm and No. 1 102/65/2 : 40.7 mm, are undocumented and 

 possibly later additions. The holotype is somewhat faded and immature, with 9 

 whorls which are broken off at the apex; it is yellowish-orange in colour, with 

 irregularly placed white flecks. Sculpture consists of 27 slender and close-set axial 

 ribs on the body whorl and 22 on the penultimate whorl; fine spiral striae override 

 axial ribs, interstices are deeply punctate, and there is one prominent and deeper 

 spiral groove below the sutures. The aperture is narrow, lirate within, the pariétal 

 wall is calloused and the columella has 4 folds. 



Lamarck's species is a synonym of Vexillum (Costellaria) eostatum (Gmelin, 

 1791). The species inhabits the Indo-Pacific région. 



Mitra cornea Lamarck, 1811 

 (Fig. 28) 



1X11. Mitra cornea Lamarck, Ann. Mus. d'Hist. Nat., 17:211, No. 40 

 1822. Mitra cornea Lamarck, Anim. s. vert., 7:313 



Les côtes occidentales d'Afrique; mon cabinet; length 26-28 mm; mss. 2 ex. — 

 Collection Lamarck, Geneva: 2 spécimens. 



