236 MR. A. ADAMS ON JAPANESE OBELISCINZ. |Nov. 1], 
3. SrytopryGMaA LENDIX, A. Ad. 
S. testa elongata, pupiforni, in medio tumida, tenui, semiopaca, 
lactea, polita, nitida; anfractibus normalibus 7, planis, intus 
transversim liratis, obsolete longitudinaliter striatis ; apertura 
ovata, antice dilatata et eversa; plica parietali obliqua, valida, 
Hab. Yobuko. 
A polished white larviform species, with the transverse internal 
grooves Visible through the semiopaque substance of the whorls. 
4, SryLopTyGMA Gippum, A. Ad. 
S. testa elongato-ovata, brevicula, pupiformi, utrinque constricta, 
solidiuscula, vitrea, levi, semipellucida, alba; anfractibus nor- 
malibus 5, subconvexis, penultimo gibboso; apertura obliqua, 
semiovata ; plica parietali parva, obliqua, 
Hab. O-Sima; Tanabe. 
This is a very peculiar smooth vitreous species, with the penulti- 
mate whorl gibbous: it is pellucid only when in a fresh condition ; 
dead or worn specimens are opaque and dull. 
5. SryLorryGMA cerruM, A. Ad. 
S. testa elongata, pupiformi, in medio tumida, solidiuscula, cerea ; 
anfractibus normalibus 6, planatis, suturis obliquis impressis ; 
apertura elongato-ovali, antice dilatata ; labio calloso, incras- 
sato; plica parietali obliqua, inconspicua. 
Hab. Takano-Sima. 
A wax-like pupoid species, with the inner lip thickened and cal- 
lous, and the parietal plica obsolete. 
6. STyYLOPTYGMA LARVULA, A. Ad. 
S. testa gracili, teretiuscula, in medio tumidula, solida, opaca, lac- 
tea, polita; anfractibus normalibus 8, planis, suturis impressis ; 
apertura parva, ovata ; plica parietali valida, transversa ; labro 
intus lirato. 
Hab. O-Sima. 
A solid, milk-white, polished species, with transverse internal lire 
showing through the substance of the whorls. Its specific name is 
derived from ifs somewhat resembling a meal-worm. 
7. STYLOPTYGMA SUBULIFORME, A. Ad. 
S. testa aciculato-subulata, alba, tenui, longitudinaliter substriata; 
anfractibus normalibus 11, planis, ad suturas concinne crenu- 
latis; suturis obliquis, valde impressis ; apertura subquadrata ; 
labio plica parva, obliqua; labro dilatato, margine flexuoso. 
Hab. Tsu-Sima, 30 fathoms. 
A subulate slender species, more-nearly approaching the type- 
species than any other; the whorls are crenulated at the sutures, 
and the outer lip is dilated and flexuous at the margin, 
