236 SMITH : MOLLUSCA OF TRINIDAD. 
of growth. Named after Mr. Urich, who collected this and 
many Other species in the island. 
3.—Subulina octona (Chemnitz). 
Stenogyra octona. Guppy, Journ. of Conch., 1893, vol. vil.,p. 212. 
Hab.: Trinidad (Guppy). 
The genus Stenogyra was founded by Shuttleworth* to 
include several groups of land shells which had already been 
indicated by various authors and which bore a superficial general 
resemblance. Among these were umina Risso, Obeliscius 
Beck, Ofeas Albers, and Swéudina Beck. As Shuttleworth did 
not name a type for his genus, and, in fact, did not place any 
species under Stexogyra, but merely included in it the species 
falling under the groups already mentioned, perhaps it would 
be advisable to reject Stexogyra entirely as a too comprehensive 
genus, and to revert to the groups previously established. There 
are certain conchological and other characters which are prob- 
ably sufficient to separate them. At all events, Ofeas is dis- 
tinguishable from Swdulina by the absence of a truncation of 
the columella, and Rumina and Obeliscus are groups having a 
different aspect altogether. 
4.—Opeas Beckiana (Pfeiffer). 
Stenogvra caracasensis Reeve, Guppy, ef. cf., p. 2 
Hab.: Trinidad (Guppy). 
Bulimus oryza Reeve (2? of Bruguiere) and BL. caracasensis 
Reeve are synonymous. Remarks upon the distribution of this 
species have been made by the writer in the Proc. Mal. Soc., 
1895, vol. 1., p. 309. 
5.—Opeas plicatella (Guppy). 
Stenogyra plicatella Guppy, Journ. of Conch., 1893, vol. vii. 
[Os BUS 
Opeas plicatella Smith, Proc. Mal. Soc., 1895, vol. 1, pp. 
Joh ay vy BOG, dle 1 
* Bern. Musiulyet 1854, Dp. 45. 
J.C., vili., July 1806. 
