1862.] MR. A. ADAMS ON JAPANESE OBELISCIN#. 235 
A nearly cylindrical species, with the whorls but very slightly en- 
larged in the middle. 
18. SyRNOLA COLUMNELLA, A. Ad. 
S. testa subcylindraceo-subulata, cerina, linea rufa spirali ad 
suturas ornata; anfractibus normalibus 11, convevxis, ultimo 
linea rufa transversa succincto ; apertura subquadrata, antice 
via effusa ; plica parietali valida, postica. 
Hab. Seto-Uchi; Mososeki. 
This is an elongated subcylindrical columellar species, with nume- 
rous convex whorls, and is of much larger dimensions than S. eylin- 
drella. 
19. SyRNOLA DzDALA, A. Ad. 
S. testa subulata, in medio tumidula, lactea, nitida, linea pallida 
JSulva transversa ornata ; anfractibus normalibus 7, planis, longi- 
tudinaliter substriatis, intus liratis, anfractu ultimo elongato 
ad basin rotundato ; apertura obionga ; plica parietali postica, 
_ obliqua; labro margine arcuato. 
Hab. Uraga. 
A somewhat pupiform milk-white species, obscurely banded with 
pale fulvous, 
Genus StyLorryema, A. Ad. 
Testa utrinque constricta, pupiformis, elongata, anfractibus varie 
sculptis, plerumque levibus. 
In this division I have grouped together all the Japanese species 
of Syrnola which assume a pupoid form or Clausilia-like aspect. I 
originally founded the group on Monoptygma stylinum, A. Ad. (Proc. 
Zool. Soc. 1851, p. 224); but a more extensive knowledge has en- 
abled me to modify somewhat the original diagnosis so as to include 
a wider range of species. 
1. StyLopryGMA PurirormgE, A. Ad. 
Rissoa (Goniostoma) pupiformis, A. Ad., Annals, 1860, v. 411. 
Hab. Mino-Sima. 
2. SryLOPTYGMA TENIATUM, A. Ad. 
8. testa elongata, clausiliiformi, in medio tumida, tenui aut epider- 
mide subfusca fugacea obtecta, zonulis rufis transversis ornata ; 
anfractibus normalibus 7, planatis, longitudinaliter strigulatis, 
suturis profundis; apertura ovata, antice dilatata; labio incras- 
sato, antice subplanato, plica parietali obliqua ; labro intus 
simplici. 
Hab. Takano-Sima. 
A very delicate and prettily banded species, of Clausilia shape, and 
with the whorls longitudinally strigose or strigulate, 
