THE TYPES OF THE LAMARCK COLLECTION IN THE MUSEUM OF GENEVA 967 



1838. Mitra lyrata Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 81, pl. 23, 

 fig. 71,71 



L'Océan indien; mon cabinet; length 43-45 mm (1811); 20'4 lig. = 45.6 mm 

 (1822); mss. 3 ex. — Collection Lamarck, Geneva: 5 spécimens. 



Dimensions 



Lenght 



Width 



Height of 

 Aperture 



Lectotype No. 1102/57/3 (Fig. 19) 



45.6 



13.0 



22.5 



Paralectotype No. 1102/57/1 (spec. juv.) 



44.2 



12.7 



23.2 



Paralectotype No. 1102/57/5 



44.5 



13.0 



22.5 



The spécimen figured in the Encycl. Méth., and by Kiener, has been selected 

 as the lectotype of M. lyrata. The spécimen has 7 whorls and a missing protoconch ; 

 it is off-white in colour, ornamented with dark brown spiral bands. Sculpture 

 consists of 20 slender axial ribs on the body whorl and 19 on the penultimate whorl ; 

 the interstices have finely incised spiral lines, and the siphonal fasciole has nodulose 

 spiral cords. The aperture is narrow, lirate within and the columella has 4 folds. 



Both paralectotypes have the number " 26 " written inside the aperture. The 

 other two spécimens in the collection, No. 1102/57/2: 44.8x 14.2x23.5 and 

 No. 1102/57/4: 42.5 X 12.6x23.8 mm, are undocumented spécimens and possibly 

 later additions. 



Vexillum lyratum (Lamarck) lives in the Indo-Pacific région. 



Mitra melongena Lamarck, 1811 

 1798. Tabl.Encycl. Méth., pl. 373, fig. 9 



1811. Mitra melongena Lamarck, Ann. Mus. d'Hist. Nat., 17:206, No. 27 

 1822. Mitra melongena Lamarck, Anim. s. vert., 7:309 



Probablement l'Océan indien; mon cabinet; length 38-40 mm; mss. 1 ex. — 

 Collection Lamarck, Geneva: None. 



Lamarck's holotype of M. melongena is untraceable: there are no spécimens 

 of M. melongena auctt. in the de Lessert collection in Geneva. The indifferently 

 executed figure (dorsal view only) of M. melongena in the Encycl. Méth., could, 

 with some imagination, represent the species to which the name M. melongena has 

 been applied by récent authors. The species figured by Kiener (p. 77, pl. 21, 

 fig. 65, 65) under the name M. melongena is the species Vexillum vulpecula (Lin- 

 naeus). Mitra melongena (Lamarck), cannot be identified with certainty, and the 

 taxon should be treated as a nomen dubium. 



