I'TEHONOTliS. 8T 



Described l»y A. Adams under the ni\mv ol' (ihihiisf ram — which 

 is preoccupied hy lleeve. Very like 3J. /ri(/iir/ri-. Born, but 

 differs in having only a single intervariceal rih. 



M. MACROPTERUS, Desli. V\. 40, fig. r)17. 



Of the same general appearance and color as the three pre- 

 ceding species, and appearing like a particularh' Avell-developed 

 M. lingua. The four-lohed. Avidely expanded, sca))rous foliation 

 of the marginal varix is its chief characteristic. Length, 1%5 

 inches. 



Hab. unJcnown. 



Jn the original figure the operculum ap])roaches purpuroid, but 

 the nucleus is scarcely marginal. It has evidently been care- 

 lessl}' figured. Reeve's figure has the typical opercuhim of 

 Murex. 



M. TRiPTERUs, Born. PI. 41, fig. 531. 



Columella ajid lip dentate, foliations very wide, oblique, regular. 

 Light yellowish-brown, darker within the aperture. 



Length, 2 inches. 



Bed Sea, Ind. 0., Philippines (Upolu). 



M. PINNATUS, Wood. PL 41, figs. 526, 530. 



This well-known Chinese species attains a length of 2'5 to 3'5 

 inches. It is always pure white throughout. M. pelhicidus, 

 Reeve (fig. 530), " found upon a coral bottom at a depth of 7 

 fathoms. Island of Bantaj^an, Philippines,'' is evidently the same ; 

 in fact, I have before me a suite of specimens connecting the 

 two forms. 



M. CLAVUS, Kiener. PL 41, figs. 533, 534. 



Whitish or flesh-colored. Length, 3*25 inches. In the young 

 shell (= M. hipinnafiis^ Reeve, fig. 534) the nodes and revolving 

 stria? are much more prominent. 



Philippines. 



*' * 

 M. ossEUS, Reeve. PL 41, figs. 525, 527. 



Whitish, more or less tinged with brown. Length, 2*75 inches. 



Hab. unknown. 

 This is the first of a group of species m which the foliated 

 varices terminate on the shoulder of each whorl in a hooked 



