1904. J NATURAL SCIENCES OF PHILADELPHIA. 595 



those known to belong together. Probably some other species will 

 be found to belong here. Some of the species lose their early whorls 

 in the adult stage, and are abruptly truncate, an unusual condition in 

 the Buccinidce. The group is not closely related to Phof; (type P. smfi- 

 coftus) or to Nassaria. 



Triton decollatus Sowb., Conch. Icon., Triton, PI. 18, fig. 82, left in 

 E-pulromufi l)y Tryon, is identical with Pifiam'a strigata Pease, Amer. 

 Jour, of Conch., IV, PI. 11, fig. 6, which Tryon correctly includes in 

 the genus Pisania. [Dall has erected a section Toeniola for it in his 

 heterogeneous genus f'oJ)i})r(rria: hut i( clearly belongs to Pisania.] 



Maoulotriton braoteatus longus n miI.si. 



The shell is much more slender iliaii i]f. /^/-oc/m/z/.s-/ gray-white with 

 11 ))and of black-l:)iT)wn s]')ots at the periphery on the tubercles of every 

 rib, another on the base extending into the concavity, and an irregulai- 

 series of more widely spaced spots below the suture. The single varix 

 strengthens the lip. Scnlptnre as in M . t)rartrafiis, the ribs coarser 

 than in M. di<jitalifi. 



I^ength 11.5, diam. 4.7 iimi. 



Tanabe, Kii. 1ypes No. 86,288, A. N. S. P., from No. 1,400 of I\li-. 

 llirase's collection. Also Hachijo-jima, Izu, Hirase, No. 1,393. 



^ Triton bracfeaivs Hinds, Zool. "S^ttphur," p. 1 1 , PI. 4, figs. 5, 6. Tj^e locality 

 Marquesas Islands. A series of several liundred specimens collected tliere by 

 C 1). Voy agrees closely with the type figures in size and coloration. East 

 Indian and some Polynesian specimens are often larger. 



