THE TYPES OF THE LAMARCK COLLECTION IN THE MUSEUM OF GENEVA 983 



L'Océan indien; mon cabinet; length 17 ou 18 mm; mss. 6 ex. — Collection 

 Lamarck, Geneva: 10 spécimens. 



The Lamarck collection now contains 10 spécimens which are mounted on a 

 de Lessert tablet; one of the spécimens is the species Mitra (Strigatella) discolor 

 KûSTER(=Miïra maculosa Reeve=M. turturina Souverbie). Spécimen No. 1108/ 

 12/1: 18.2x8.9x9.0 mm, has been selected as the lectotype of M. microzonias. 

 The spécimen has 6 whorls and a worn protoconch; it is dark brown in colour, 

 ornamented with a white spiral line onto which white diamond-shaped spots are 

 superimposed. Sculpture consists of ca. 12 coarse axial ribs on the body whorl and 

 14 on the penultimate whorl; the axial ribs tend to become obsolète towards the 

 aperture of the body whorl. Fine spiral striae encircle the shell, and 5 strong spiral 

 cords ornament the siphonal fasciole. The aperture is moderately narrow, lirate 

 within, and the pariétal wall is calloused; the columella has 4 folds. 



Mitra microzonias is the type-species of Pusia (Swainson, 1840); the species 

 is widely distributed throughout the tropical Indo-Pacific. 



Mitra ficulina Lamarck, 1811 

 (Fig. 45 a, 45 b) 



1811. Mitra ficulina Lamarck, Ann. Mus. d'Hist. Nat., 17:218, No. 63 

 1822. Mitra ficulina Lamarck, Anim. s. vert., 7:320 



1838. Mitra ficulina Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 97, pl. 27, 

 Tig. 86, 86 



L'Océan indien; mon cabinet; length 19-20 mm; mss. 4 ex. — Collection 

 Lamarck, Geneva: 5 spécimens. 



Dimensions 



Length 



Width 



Height of 

 Aperture 



Lectotype No. 1 102/80/2 (Fig. 45 a) 

 Paralectotype No. 1102/80/1 Fig. 45 b) 



20.1 

 20.3 



8.9 

 10.7 



10.8 

 10.7 



The spécimen figured by Kiener has been selected as the lectotype of 

 M. ficulina. The spécimen is immature, and has 8 whorls and a missing protoconch ; 

 it is uniformly blackish-brown in colour. Sculpture consists of 13 strong and 

 coarse axial ribs on the body whorl and 14 on the penultimate whorl; strong, 

 continuous spiral cords encircle the shell, 17 on the body whorl and 8 on the 

 penultimate whorl; the cords are finely axially striate, and the siphonal fasciole has 

 5 strong spiral cords. The aperture is narrow, white and lirate within and the 

 labial lip is angulate; the pariétal wall is calloused and the columella has 4 folds. 



