ii6 



Stat. 95. 5°43'.5 N., ii9°4o'E. Sulu Sea. 522 M. Stony bottom, i Spec. 



Stat. 289. 9°o'.3S., 1 26° 24'. 5 E. Timor Sea. 112 M. Mud, sand and shells. 3 Spec. 



The specimen from Stat. 95 is a worn, broken shell, but quite typical in shape, with two 

 tubercles between the varices. Those from Stat. 289 are small, with 3 or 4 rows of numerous 

 tubercles in each of the upper whorls ; they are still more characterised by having distinct spines, 

 only connected at their foot, instead of the broad wings with short spines, characteristic for the 

 type. As the number of recent specimens I could compare, is restricted, I have not described 

 this form as a new species. If the spinous character proves to be constant, it may be called 

 var. aculeata. I have provisionally distinguished it under that name. 



6. Gyrineum (Biplex) pidchelhtm Forbes. 



Forbes. Voy. of the "Rattlesnake", Vol. II, p. 382, PL 3, fig. ta, b. 

 E. A. Smith. Zool. Coll. of H. M. S. "Alert", p. 56. 



Stat. 162. Between Loslos and Broken-islands. W. coast of Salawatti. iS M. Coarse and fine 

 sand with clay and shells, i Spec. 



Only one broken shell, which agrees in every respect with my specimen from Torres- 

 strait. Tryon has only mentioned it in his register, as a synonym of G. perca^ but not in his 

 systematic enumeration. BooG Watson in his "Challenger "-Gastropods, has mentioned it (p. 402) 

 also as a synonym. E. A. Smith (1. c.) and Brazier have separated it, I think on sufficient 

 grounds. Indeed, if one compares the shells, they are very different; with the same number of 

 whorls, the shell is still much smaller, than the var. aculeata of the preceding species, and has 

 the tubercles on the whorls still more numerous, the varices are impressedly striate, not ribbed, 

 with broad interstices, as in G. perca. 



Bursa Bolten. 



I. Bursa crumena Lamarck. 



Lamarck. An. s. vert. Ed. II, Vol. IX, p. 644. 



KlENER. Coq. Viv. Vol. VI, Ranella, p. 4, PI. 3, fig. i [elegans). 



Reeve. Conch. Ic. Vol. II, Ranella, fig. 17. 



KiJSTER. Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 149, PL 39a, fig. 3. 



Tryon. Man. of Conch. Vol. Ill, p. 37, PL 18, fig. 3. 



Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. i Spec. 



The only specimen is a dead shell, which seems to have been inhabited by one of 

 the Paguridae. 



■^b 



Bursa margaritula Deshayes. 



Deshayes. An. s. vert. Ed. II, VoL IX, p. 550. 



KlENER. Coq. Viv. Vol. VI, Ranella, p. 14, PL 8, fig. 2. 



Reeve. Conch. Ic. Vol. II, Ranella, fig. 15. 



KtJSTER. Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 137, PL 38, fig. 4, 5? 



Tryon. Man. of Conch. Vol. Ill, p. 37, PL 18, fig. 4. 



