958 



W. O. CERNOHORSKV 



Habite...; Coll. Mus.; length 46.0mm; mss. 1 ex. — Collection Lamarck, 

 Geneva: 4 spécimens. 



The type of M. ferruginea was described from the collection of the Muséum 

 d'Histoire Naturelle, Paris, but one syntype " 30.4 mm " in length, remained in 

 Lamarck's private collection. The collection now contains 4 spécimens of M. 

 ferruginea: 1 spécimen ex-Sollier collection 39.4 mm (the letter " S " is marked 

 inside the aperture), 2 undocumented spécimens 38.6 and 36.9 mm in length, and 

 Lamarck's syntype. The syntype No. 1102/47/4: 29.5 X 1 1.4 x 15.4 mm, is here 

 designated as the paralectotype. The spécimen is somewhat faded and has 9 whorls 

 and a worn protoconch; it is yellowish-white in colour, ornamented with broad, 

 brown axial streaks. Sculpture consists of 12 elevated spiral cords on the body 

 whorl and 4 on the penultimate whorl; interstices of cords are axially striate. 

 Aperture is moderately narrow, smooth within, the labial lip is thick and crenulate 

 and the columella has 5 folds. 



Lamarck described a var. B of M. ferruginea which he based on an illustration 

 in Chemnitz (1795, Vol. 11, pl. 177, figs. 1709-10). The depicted species is the 

 Mitra contracta Swainson, 1820. 



Lamarck's species is the M. ferruginea auctt. ; it is a common species widely 

 distributed throughout the tropical Indo-Pacific. 



Mitra terebralis Lamarck, 1811 

 (Fig. 6) 



1811. Mitra terebralis Lamarck, Ann. Mus. d'Hist. Nat., 17:201, No. 11 

 1822. Mitra terebralis Lamarck, Anim. s. vert., 7:303 



1838. Mitra terebralis Lamarck, Kiener, Spéc. gén. icon. coq. viv., p. 23, pl. 8, 

 fig. 21 



Habite...; mon cabinet; length 8cm (3 pouces); mss. 1 ex. — Collection 

 Lamarck, Geneva: 3 spécimens. 



Lamarck's holotype can easily be separated from the other two undocumented 

 spécimens which measure 68.5 and 65.1 mm respectively. The holotype No. 1102 

 48/2: 80.9x24.0x34.9 mm, has 8 whorls and a worn protoconch; it is cream in 

 colour, ornamented with dark brown axial streaks. Sculpture consists of ca. 30 

 somewhat nodulose spiral cords on the body whorl and 8 on the penultimate 

 whorl; thèse cords are bisected by irregular longitudinal striae. Aperture is 

 moderately wide, smooth within, the labial lip is immature and crimped and the 

 columella has 6 folds. 



Lamarck's species is a synonym of Mitra incompta (Lightfoot, 1786); the 

 speeies OCCUrS in widely seattered localities throughout the tropical [ndo-Pacific. 



