CANCELLARIA. 81 



and G. serrata, Reeve (fig. 99), are synonyms. The latter name 

 being preoccupied b}^ Bronn fora fossil species, Semper changed 

 it to C. Crossei. 



C. HYSTRIX, Reeve. PL 6, fig. 100. 



Imperforate, globosely ovate, whorls narrowly shouldered, 

 obliquely, longitudinally, closely ribbed, ribs erect, narrow, 

 prickly serrated ly spiral lines, shoulder angle spiny; whitish, 

 faintly tinged with livid brown ; colnmellar plaits three; irregu- 

 lar, interior of aperture red-lined. Length, 1 inch. 



Mauritius. 

 C. OBLIQUATA, Lam. PL 6, fig. 1. 



Globosely ovate, ventricose, narrowly deeply umbilicated ; 

 whorls excavately shouldered, obliquely thinly ribbed, the ribs 

 slightly prickly at the shoulder angle, spirally elevately striated, 

 the intersections slightly nodulous ; yellowish white, stained and 

 spotted with chestnut. Length, 1 inch. 



Philippines, Zanzibar. 



This shell probably passes into C. scalata, Sowb., a form with 

 more exserted spire ; Sowerby's figure 82, intended for C. obli- 

 quata, represents one of these transition forms. 



C. SCALATA, Sowb. PL 6, figs. 3-9 ; PL 7, fig. 11. 



Narrowly umbilicated, excavately shouldered, nodulous 

 throughout by the intersection of longitudinal close ribs and 

 spiral elevated lines ; yellowish white to chestnut-color. 



Length, 1-1'25 inches. 



Red Sea, Ceylon, Mauritius, Moluccas, New Caledonia. 



Differs (not sufficient!}^ in form principally, from the pre- 

 ceding species, the body-whorl being less ventricose and the spire 

 longer. C. textilis, Kiener (fig. 3), C. articularis, Sowb. (fig. 4), 

 C. contabulata, Sowb. (fig. 5), C. puxilla, Sowb. = young C. 

 contabulata (fig. 6), C. Forestieri, Montr, (fig. 7), and C. Rou- 

 geyroni, Souv. (fig. 11), from New Caledonia, are synonyms. 

 C. Montrouzieri, Sou verb. (fig. 8), is mainly distinguished from 

 the last named, by the shoulder being biplanate and carinate at 

 the angle ; I believe it to be a merely accidental variety ; it is 

 also New Caledonian. C. tenuis, A. Adams (fig. 9), appears to 

 be founded on a not fully grown individual of the normal form. 



