THE TYPES OF THE LAMARCK COLLECTION IN THE MUSEUM OF GENEVA 963 



La mer de l'Inde; mon cabinet; length 32 mm; mss. 2 ex. — Collection 

 Lamarck, Geneva: 4 spécimens. 



Dimensions 



Length 



Width 



Height of 

 Aperture 



Lectotype No. 1102/52/1 (Fig. 13) 

 Paralectotype No. 1102/52/2 



31.8 

 32.2 



10.9 

 10.4 



17.3 

 16.0 



The smaller spécimen which has been figured in the Encycl. Méth., is designated 

 as the lectotype of M. crenifera. The spécimen has 7 whorls inclusive part of 

 protoconch; it is white in colour, ornamented with 2 broad, irregular brown bands 

 on the body whorl, and axial zones near sutures on earlier whorls. Sculpture 

 consists of close-set longitudinal cords which are bisected by deep and shallow 

 spiral grooves, making the shell appear scabrous. Aperture is white, the labial lip 

 is crimped and not fully formed and smooth within; the columella has 5 folds. 



The paralectotype is slightly larger and has only 4 columellar folds. The 

 remaining spécimens No. 1102/52/3: 26.7 x 9.4 x 15.0 mm and 1102/52/4: 24.5x 

 8.2 x 12.8 mm, are undocumented type material; the smaller spécimen is from the 

 Sollier collection. 



Lamarck's species is a synonym of Neocancilla clathrus (Gmelin, 1791), a 

 species widely distributed throughout the tropical Indo-Pacific région. 



Mitra serpentina Lamarck, 1811 

 (Fig. 14) 



1798. Tabl. Encycl. Méth., pl. 370, figs. 4 a, b 



1811. Mitra serpentina Lamarck, Ann. Mus. d'Hist. Nat, 17:204, No. 21 

 1822. Mitra serpentina Lamarck, Anim. s. vert., 7:306 

 1838. Mitra serpentina Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 13, 

 pl. 6, fig. 17,17 



Probablement l'Océan indien; mon cabinet; length 34mm; mss. 2 ex. — 

 Collection Lamarck, Geneva: 1 spécimen. 



The spécimen extant in Lamarck's collection No. 1107/100: 33.9xl2.0x 

 18.6 mm, is designated as the lectotype of M. serpentina. The spécimen has 7 

 whorls and a worn apex; it is whitish in colour, ornamented with axial, irregular 

 dark brown and wavy lines and two broad but obsolète spiral bands on the body 

 whorl. Sculpture consists of 16 punctate spiral grooves on the body whorl and 4 

 grooves on the penultimate whorl; the siphonal fasciole has 3-4 cords. The 

 aperture is narrow and elongate, smooth within, the labial lip is not fully formed 

 and the columella has 6 folds. 



