172 COSTELLARIA. 



Pease (fig. 452 \ yellowish white, interruptedly banded or marked 

 with light chestnut ; a faded, stumpy specimen of it was called 

 T. Wisemanni by Dohrn. 



As there is some diversity of sculpture and coloration in the 

 typical shells above enumerated, I have thought it advisable to 

 retain their names as varieties, for the sake of those who, less 

 well provided with specimens than myself, may not be able to 

 convince themselves that they are mere individual stages or local 

 races perhaps, of one species. T. cimelium, Reeve (fig. 454), is 

 a young shell referable to this species. The shell which Sowerby 

 has erroneously determined as T. rorata, Gld. (fig, 455), may 

 also be placed here. 



T. INTERSTRIATA, Sowb. PL 51, fig. 456. 



Longitudinal costae smooth, distant, the interstices with spiral 

 striae. White, banded with orange, maculated with chestnut 



between the ribs. Length, 1*15 inches. 



China Seas. 



I have not seen this species, but think it will prove to be a 

 f\ variety of T. militaris. 



T. CORBICULA, Sowb. PI. 51, fig. 457. 



Yellowish white, shaded with yellowish brown, the tubercles 

 of the shoulder angle tipped with chestnut, forming a neckl.-u-c- 

 like row ; interior of aperture light yellowish. Ribs and revolv- 

 ing riblets both close, forming granules. Length, '8-1 inch. 



Mauritius. 

 T. SULUENSIS, Adams and Reeve. PI. 51, fig. 459. 



Yellowish white, spotted with chestnut, forming two inter- 

 rupted bands. Length, 1 inch. 



Sooloo Islands. 



T. COLLINSONI, A. Adams. PL 51, figs. 458, 460, 461. 



Whitish, stained with brown at the apex, obscurely banded 

 with bluish ash a little below the top of the whorls, and spotted 

 irregularly with brown in the same part, generally between the 

 costae ; lower half of the last whorl cinereous brown. 



Length, '75-1 inch. 



Japan. 



Differs from T. Suluensis in having a non-turreted spire, filler 

 spiral sculpture, a shorter aperture, and in its color. The fore- 



