988 



W. O. CERNOHORSKY 



Due to Lamarck's erroneous locality indication, the species is sometimes 

 found in old collection with various Indo-Pacific locality labels. Pusia dermestina, 

 however, is a Caribbean species, and has chronological priority over Mitra 

 albicostata (C. B. Adams, 1850), described from Jamaica. 



Mitra granulifera Lamarck, 1811 

 (Fig. 52 a, 52 b) 



1811. Mitra granulifera Lamarck, Ann. Mus. d'Hist. Nat., 17:221, No. 77 

 1822. Mitra granulifera Lamarck, Anim. s. vert., 7:325 

 L'Océan des grandes Indes (error!); mon cabinet; length 8.0 mm; mss. 10 

 ex. — Collection Lamarck, Geneva: 12 spécimens. 



Dimensions 



Length 



Width 



Height of 

 Aperture 



Lectotype No. 1102/83/1 (Fig. 52 a) 

 Paralectotype No. 1102/83/2 (ig. 52 b) 



7.7 

 10.9 



4.4 

 6.6 



5.4 

 6.8 



The selected lectotype is a spécimen which corresponds closest to Lamarck's 

 given dimension; it is however, too worn, and a better preserved, larger spécimen 

 has been selected as the paralectotype. The lectotype is a spécimen of 4 whorls and 

 a worn apex; it has a greyish-white base colour and blackish-brown nodules. 

 Sculpture consists of 5 spiral rows of rounded nodules on the body whorl and 3 

 rows on the penultimate whorl. The aperture is narrow, the labial lip has 5 worn 

 denticles and the columella has 1-2 obsolète plicae. 



The paralectotype has 4 whorls and a worn apex, the body whorl has 5 rows of 

 nodules, which are arranged in 10 axial rows, and the penultimate whorl has 3 

 rows; the interstices of the nodules are spirally corded. The aperture is constricted, 

 the labial lip has 4 prominent denticles of which the posterior one is the largest, 

 and there is a distinct anal canal; the columella has 3 subequal, irregular plicae, 

 and the siphonal canal is prominent, although short. 



Mitra granulifera is not a mitrid, but a muricid of the genus Morula 

 (Schumacher, 1817). It appears to be a prior name for the Caribbean species 

 Morula nodulosa (C. B. Adams, 1845). 



Mitra oniscina Lamarck, 1811 

 (Fig. 53) 



1X1 I. Mitra oniscina Lamarck, Ann. Mus. d'Hist. Nat.. 17:221, No. 78 

 1X22. Mitra oniscina Lamarck, Anim. s. vert., 7:325 (6% lig.= 14.1 mm) 



