HrCVlNANOl'S. I.. 



B. PKRSICA, E. A. Smith. PI. 5, fig. 70. 



Greyish, or lavender-color; spirally silicate, somewhat grsni- 

 ulous next below the suture. Length, 1 inch. 



Buafiirc, Per ni fin- (lu-lf. 

 B. SULCATA, Reeve. PI. 5, fig. 71. 



Lavender or lead-color, rather solid; whorls closely, concen- 

 trically grooved. 



Habitat unknown. 



B. SEMIFLAMMEA, lleCVC. PI. 5, fig. 75. 



Yellowish white, lower half of whorls with longitudinal chest- 



Kit flames. Length, 1*25 inches. 

 Cape of Good Hope. 

 Subgcnus Buocinanops, d'Oib. 



Embraces three species from the Southern parts of the Coast 

 of South America. The}' are of rude growth, usually with a 

 flattened shoulder below the sufures. 



B. COCHLIDIUM, Kiener. PI. 5, fig. 73; PL 6, tigs. 76-81. 



Yellowish white, sometimes with two obscure bunds of longi- 

 tudinally disposed chestnut-brown flames; whorls soinetiines 

 decidedly shouldered, and the shoulder defined by a somewhat 

 corded ridge. Length, 1-5-3 inches. 



Brazil to Patagonia ; on the Pacific Ooast, north to Peru. 



I do not agree with Deshayes and Reeve that Kiencr's species 

 is different from that of Chemnitz, and therefore I do iio^dopt 

 Deshayes' name B. gradata: still, as Chemnitz was not a binom- 

 inal writer I cannot cite him as authority for the species. The 

 fact is that B. cochlidium is of rude, frequent!}' distorted growth, 

 and a collection of specimens exhibits many forms. The figure 

 of cochlidium given by Reeve, as exhibiting the type of the 

 species is but slightly shouldered, and large as it is, is not adult 

 (fig. 76); Kiener's figure is also given (fig. 73). B. gradata , 

 Desh., is represented by figure 77, from Reeve's Iconica, B. 

 Lamarckii, Kiener (fig. 78), is another form which is scarcely 

 shouldered, and other intermediate forms are shown in B. Pa,ij- 

 tense, Yal. (fig. 79), and B. squalida, King (fig. 80). A remark- 

 ably distorted shell, called by Gmelin BUG. labyrinth um (fig. 81), 

 very probably belongs here. 





