THE TYPES OF THE LAMARCK COLLECTION IN THE MUSEUM OF GENEVA 971 



1838. Mitra lutescens Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 31, 

 pl. 11, fig. 32, 32 



Les côtes occidentales de l'Afrique; mon cabinet; length 20-24 mm; mss. 

 4 ex. — Collection Lamarck, Geneva: 9 spécimens. 



Spécimens have subsequently been added to Lamarck's original 4 syntypes, 

 possibly from the de Lessert or Sollier collections. Seven of the spécimens are the 

 species M. lutescens of Lamarck, and 2 spécimens are Mitra ( Strigatella) 

 pellisserpentis (Reeve, 1844). We select spécimen No. 1 107/97: 20.5 x 7.8 x 10.0 mm, 

 as the lectotype of M. lutescens. The spécimen is very worn and pitted, has 6 whorls 

 and a worn apex; it has faded to a yellowish-white colour, and any sculpture there 

 may have been, is worn away. The aperture is moderately wide, smooth within, the 

 labial lip is simple and the columella has 3 folds. 



Kiener's delineation appears to be that of the lectotype, but ail the small pits 

 présent on the type have been eliminated in the drawing. 



Lamarck's species is a synonym of the Mediterranean-East Atlantic Mitra 

 cornicula (Linnaeus). 



Mitra striatula Lamarck, 1811 

 (Fig. 26) 



1811. Mitra striatula Lamarck, Ann. Mus. d'Hist. Nat., 17:210, No. 38 

 1822. Mitra striatula Lamarck, Anim. s. vert., 7:312 (Hab: Les mers d'Amé- 

 rique) 



1838. Mitra striatula Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 36, 

 pl. 13, fig. 41, 41 



Probablement les côtes d'Afrique (error!); mon cabinet (1822); length 44 mm; 

 mss. 9 ex. — Collection Lamarck, Geneva: 5 spécimens. 



Dimensions 



Length 



Width 



Height of 

 Aperture 



Lectotype No. 1102/64/1 (Fig. 26) 



42.4 



12.6 



19.5 



Paralectotype No. 1102/64/2 (spec. juv.) 



24.4 



9.9 



14.0 



Paralectotype No. 1102/64/3 



29.2 



9.0 



15.1 



Paralectotype No. 1102/64/4 (spec. juv.) 



25.0 



8.8 



13.2 



Paralectotype No. 1102/64/5 



20.8 



8.0 



12.4 



The lectotype is slightly worn and faded, with 8 whorls and a worn apex; it is 

 yellowish-brown in colour, with obsolète, faded white spots. Sculpture consists of 



Rev. Suisse de Zool., T. 76, 1969. 



64 



