THE TYPES OF THE LAMARCK COLLECTION IN THE MUSEUM OF GENEVA 979 



In addition to the original 2 syntypes, 3 spécimens have been added during 

 the years to Lamarck's syntype séries (18.0, 16.3 and 15.8 mm); thèse spécimens 

 are undocumented later additions. 



The selected lectotype has 8 whorls and a worn protoconch; it is orange in 

 colour, ornamented with an irregular white peripheral band on the body whorl and 

 small white scattered spots. Sculpture consists of 18 prominent spiral cords on the 

 body whorl and 4 angulate cords on the penultimate whorl. The aperture is narrow, 

 smooth within, the labial lip is thick and crenulate and the columella has 4 folds. 

 The paralectotype is a very worn spécimen which has faded to yellow. 



Mitra cucumerina is a rather common species which is widely distributed 

 throughout the tropical Indo-Pacific. 



Mitra muriculata Lamarck, 1811 

 (Fig. 38) 



1798. Tabl. Encycl. Méth., pl. 375, fig. 6 



1811. Mitra muriculata Lamarck, Ann. Mus. d'Hist. Nat, 17:216, No. 56 

 1822. Mitra muriculata Lamarck, Anim. s. vert., 7:318 

 1838. Mitra muriculata Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 92, 

 pl. 28, figs. 92, 92 



L'Océan indien?; mon cabinet; length 18mm; mss. 1 ex. — Collection 

 Lamarck, Geneva: 1 spécimen. 



The holotype No. 1102/78: 18.9 x 11.1 x 1 1.7 mm, is extant in Lamarck's 

 collection. The spécimen is not fully mature and has 6 whorls and a worn apex; it 

 is faded, orange in colour throughout with some of the suturai nodes white. 

 Sculpture consists of 1 1 prominent spiral cords on the body whorl and 2 cords on 

 the penultimate whorl ; the sutures bear prominent nodes, and obsolète axial plicae 

 produce nodules on the spiral cords. The aperture is narrow, the labial lip crimped 

 and the columella has 4 folds. 



Mitra muriculata Lamarck, is a synonym of Pusia bernhardina (Rôding, 1798), 

 a species which has an Indo-Pacific distribution. 



Mitra torulosa Lamarck, 1811 

 (Fig. 39) 



1811. Mitra torulosa Lamarck, Ann. Mus. d'Hist. Nat., 17:216, No. 57 

 1822. Mitra torulosa Lamarck, Anim. s. vert., 7:318 



L'Océan indien?; mon cabinet; length 24-28 mm; mss. 1 ex. — Collection 

 Lamarck, Geneva: 1 spécimen. 



Rosalie de Lamarck indicates that only 1 spécimen was présent in her father's 

 collection. This spécimen No. 1102/79: 22.9 X 8.1 X 10.0 mm is considered to be 



