2 SYKES : INFALACOLOGICAL NOTES. 



14.— Description of Leptachatina henshawi, n.sp. 



Shell ovately-pyramidal, riinate, somewhat thin, brownish-horny in 

 colour, longitudinally well marked with filiform striae, which become 

 weaker towards the base, apex blunt. Whorls 5|, plano-convex, the 

 protoconch being large and smooth, the others sculptured as mentioned 

 above, the last whorl measuring 4/7 of the entire length of the shell. 

 Suture Avell marked. Mouth subquadrate, the straight columella r 

 margin being slightly reflected. Plica small and ascending. 



Alt. 7 ; diam. max. 3.6 millim. 



llah. — Bucholtz, Kona, 1,H00 feet, Tlnwaii (comm. IT. TTenshaw). 



This pretty little shell recalls somewhat in appearance Thaanumia om- 

 phalocles, Ancey, but lacks the sculpture of the protoconch and the 

 distinct umbilical area. The sculpture is similar in nature to that of L. 

 fenehrosa. Pease, of Kauai, A'c. I know no very close nlly in the Hawaiian 

 fauna. It is with nuich pleasin-e that I affix to tlie species the name of Prof. 

 H. Henshaw, to whom 1 owe botli it and many dthiM' interesting 

 Hawaiian shells. 



15.— On the name Cataulus. 



In lS-t7, Gray '^' mentioned, in the synonymy of Brachypim, the name 

 Tortnlosa, giving Turbo torfuosns as a type or example. Three years 

 after ''^^ the species appears under Megalomastoma, the name Torln- 

 losa not being mentioned. 



In 1851 Pfeiffer ''" proposed and diagnosed Cataulus for three 

 species, tortuosu.% (emjilemani, and layardi, no type being named, and 

 the following year he extended ''* the group by the addition of three 

 more species, a course which he also adopted in the well-known 

 "Monographia Pneumonoporum " (p. 136). 



Proc. Zool. Soc:, 1847, p. 177. 

 Nomencl. IMoll. Brit. Mus. Part I, p. 30. 

 Zeitschr. f. malak., vol. viii, p. 149. 

 Cat. Phan. Brit. Mus., p. 95. 



