358 



Reeve. Conch. Ic. Vol. Ill, Ricinula, fig. i8. 



KiJSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. Ill, Ricinula, p. 22, PL 4, fig. 4, 5. 



Tryon. Man. of Conch. Vol. II, p. 189, PI. 59, fig. 269. 



Stat. 322. Near Tandjong Lajar, South coast of Bawean-island. 32 M. Coral. 2 Spec. 



14. Sistrttni (MortUa) musivum Kiener. 



KlENER. Coq. Viv. Vol. VII, Purpura, p. 38, PI. 9, fig. 22. 



Reeve. Conch. Ic. Vol. Ill, Purpura, fig. 52. 



KUSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. Ill, Purpura, p. 156, PL 25^, fig. 13. 



Tryon. Man. of Conch. Vol. I, p. 192, PL 59, fig. 284. 



Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River mud, coral, coral- 

 sand. I Spec. 

 Stat. 51. Madura-bay. 69 — 91 M. Fine grey sand, coarse sand with shells and stones. I Spec. 



The specimen from Stat. 5 1 is very characteristic by its rows of brown and black 

 tubercles. 



Moreover there are a few specimens, probably belonging to Sistrtan or PtirpiLra^ too 

 young or bad to be identified. 



Latiaxis Swainson. 

 I. Latiaxis Debtirghiae Reeve. 



Reeve. Proc. Zool. Soc. Lond. 1857, p. 208, PL 38, fig. 3. 



Tryon. Man. of Conch. Vol. II, p. 203, PL 6^, fig. 383 [Mawae pars). 



Sowerby. Thes. Conchyl. Vol. V, p. i, PL i, fig. 5. 



Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. r Spec. 

 Stat. 204. Between islands of Wowoni and Buton, Northern entrance of Buton-strait. 75 — 94 M. 



Sand with dead shells, i Spec. 

 Stat. 289. 9°o'.3 S., 126° 24'. 5 E. Timor Sea. 112 M. Mud, sand and shells. 3 Spec. 



This species seems to be rather variable, the specimen from Stat. 204 agrees with 

 Reeve's figure of his Pyrtila (Rhizochihis) Deburghiae (1. c.) as far as concerns the development 

 of the fronds, but the sculpture of the body is more crowded, the number of spiral lirae seems 

 to be larger in the Siboga-specimen ; in this respect the specimens from Stat. 289 better agree, 

 the fronds of 2 specimens are however more developed and more erect, remembering the 

 figures of Dale, (Blake-report, Bull of the Mus. Comp. Zoology, Vol. XVIII, p. 218, PL 16, 

 fig. 5); these fronds being also more serrated than in Reeve's figure. The latter specimens have 

 also a tendency to be more or less costate, as seems to be the case with Sowerby's L. cariniferiis 

 (Thes. Conch, fig. 6) ; on account of these differences it seems questionable if that species 

 can stand as specifically different from L. Deburghiae. The aperture of at least one specimen 

 from Stat. 289 is tinged with pale violet, which is probably the case in every fresh specimen; 

 that from Stat. 47 is very young, but sufficiently agrees with the upper whorls of larger 

 specimens. 



112 



