THE TYPES OF THE LAMARCK COLLECTION IN THE MUSEUM OF GENEVA 965 



Dimensions 



Length 



Width 



Height of 

 Aperture 



Lectotype No. 1102/55/4 (Fig. 16) 



41.3 



18.5 



24.5 



No. 1102/55/1 



37.9 



16.2 



22.3 



No. 1102/55/2 



44.2 



18.0 



25.4 



No. 1102/55/3 



39.6 



18.9 



23.8 



No. 1102/55/5 



37.7 



17.7 



23.8 



The selected lectotype of M. corrugata has been figured in the Encycl. Méth., 

 and by Kiener. The spécimen has 8 angulate whorls and a missing protoconch; it 

 is whitish in colour, ornamented with narrow dark brown spiral bands on the body 

 whorl and at the sutures. The body whorl is sculptured with 12 coarse axial ribs and 

 the penultimate whorl with 14; prominent spiral cords encircle the shell, and are 

 most distinct at the sutures and towards the base. The labial lip is angulate and 

 thick, lirate within, the pariétal wall is calloused and the columella has 4 prominent 

 folds. The number " 24 " is written inside the aperture. 



Lamarck's species is a synonym of Vexillum rugosum (Gmelin, 1791), a 

 common species widely distributed in the tropical Indo-Pacific région. 



Mitra costellaris Lamarck, 1811 

 (Fig. 17) 



1798. Tabl. Encycl. Méth., pl. 373, fig. 3 



1811. Mitra costellaris Lamarck, Ann. Mus. d'Hist. Nat., 17:206, No. 25 

 1822. Mitra costellaris Lamarck, Anim. s. vert., 7:308 



L'Océan indien; mon cabinet; length 44 mm; mss. 3 ex. — Collection Lamarck, 

 Geneva: 4 spécimens. 



Dimensions 



Length 



Width 



Height of 

 Aperture 



Lectotype No. 1102/56/3 (Fig. 17) 



45.4 



15.8 



25.0 



Paralectotype No. 1102/56/4 



36.4 



12.8 



19.1 



Paralectotype No. 1102/56/1 



34.8 



12.3 



20.1 



The fourth spécimen extant in the collection is the type of Lamarck's var. B, 

 i.e. Mitra nigrina. The lectotype of M. costellaris has been figured in the Encycl. 



