THE TYPES OF THE LAMARCK COLLECTION IN THE MUSEUM OF GENEVA 957 



Mitra archiepiscopalis Lamarck, 1811 

 (Fig.4) 



1798. Tabl. Encycl. Méth., pl. 369, fig. la, b 



1811. Mitra archiepiscopalis Lamarck, Ann. Mus. d'Hist. Nat., 17:199, No. 7 

 1822. Mitra archiepiscopalis Lamarck, Anim. s. vert., 7:302 

 L'Océan indien; mon cabinet; length 5 cm; mss. 1 ex. — Collection Lamarck, 

 Geneva: 1 spécimen. 



The extant spécimen in the collection is the holotype No. 1102/45: 47.7 X 

 20.6x30.2 mm. The spécimen has 8 whorls and a missing protoconch; it is off- 

 white in colour, ornamented with spirally arranged dark red spots. Sculpture 

 consists of 25 close-set spiral rows of punctations on the body whorl and 9 on the 

 penultimate whorl; the siphonal fasciole has ca. 10 spiral cords. Aperture is 

 moderately wide, smooth within, labial lip is thick and finely crenulate and the 

 columella has 5 folds. The number " 7 " is written within the aperture. 



Mitra archiepiscopalis is a synonym of M. cardinalis (Gmelin, 1791); the 

 species is widely distributed throughout the tropical Indo-Pacific. 



Mitra versicolor Lamarck, 1811 



1784. Mitra versicolor Martyn, Univ. Conchologist, pl. 23, 2 figs. (non 

 binomial ) 



1811. Mitra versicolor Lamarck, Ann. Mus. d'Hist. Nat., 17:200, No. 8 

 1822. Mitra versicolor Lamarck, Anim. s. vert., 7:302 (22% lig. = 51.2 mm) 

 Les mers de la Nouvelle-Hollande (Péron), les côtes des îles des Amis; mon 

 cabinet; length 51 mm; mss. 2 ex. — Collection Lamarck, Geneva: 5 spécimens. 



The 5 spécimens extant in the collection are undocumented type-material 

 which may have originated from the de Lessert collection. The smallest, immature 

 spécimen measures 37.8 mm in length, and the smallest adult spécimen 56.6 mm; 

 the 3 remaining spécimens are ail larger, and Lamarck's 51 mm spécimen is not 

 among them. Since we cannot be certain that any of the 5 spécimens are original 

 type-material, the sélection of a lectotype has been omitted in this instance. The 5 

 spécimens in the collection are the species Mitra nubila (Gmelin, 1791). 



Mitra ferruginea Lamarck, 1811 

 (Fig. 5) 



1811. Mitra ferruginea Lamarck, Ann. Mus. d'Hist. Nat., 17:200, No. 10 

 1822. Mitra ferruginea Lamarck, Anim. s. vert., 7:303 (13 lig. = 30.4mm) 



