G E N IT S B U C CM N V M . 45 



44. BUCCINUM CRIBARIUM, LAM. The Sieyt Buccmum. 



n (h (Jf< ffi/ft 

 (Collect. MASS. LAM.) LIST., pi. 929, fig. 24. 



PI. XVI, fig. 57. 



B. testa parvula, oblonga, cylindracea, laevi, fulva aut ruf, albo-punc- 

 tata ; anfractibus subconnatis, margine superiore fascia albo et fusco ar- 

 ticulata cinctis; spiri apice truncati ; aperturft angustiuscula ; labro inttis 

 striato. 



Shell small, oblong, pretty thick, cylindrical, smooth, fawn 

 colored or red, dotted with small, round, white dots, disposed 

 regularly in quincunxes, or in a net work ; spire composed of 

 eleven whirls, generally truncated at the summit. The whirls 

 are subconnate, surrounded at their upper part by an articulat- 

 ed band of white and brown ; the lowest whirl ornamented 

 towards its base with numerous transverse fine striae. Aper- 

 ture narrow, of a violet color. Lip obtuse, thick, almost 

 straight, interiorly having small folds or teeth in large quanti- 

 ties. The upper extremity forms the commencement of an 

 emargination. All the external surface of this shell is covered 

 by a membranous, reddish, thin periosteum, so transparent, 

 that the colors are seen through it. 



Length 5 lines. Width 2 lines. 



Inhabits the Indian Ocean, the island of Ascension, and the 

 coasts of Goree, where it is very abundant. 



This pretty little species is the same as the BUCCINUM Barnet 

 of Adanson ; the hell, owing to differences of age and sex, 

 presents some varieties in its form. This author remarked that 

 young shells have, proportionally, less length, less thickness, and 

 less spire ; the extremity is at the same time less obtuse ; the 

 right lip thinner, sharp, and without teeth. He also observed, 

 that, for the most part, the old shells which presented similar 

 characters, were old females. Finally, he pointed out another 

 peculiarity, common to all the specimens, which have attained 

 the number of eleven whirls : the shell is broken at the extremity 



