GUPPY GULF OF PARlA. 
13 ? 
Order Trochacea. 
Astra lium Link 
108. Astralium rliodostomum Lam. 
Trochus Linne. 
109. Tr, bjronianus Gray 
Tr. hotessieranus Orb., Moll. Cuba, vol. ii, p. 59, 
pi. xviii, f. 15-17. 
Tr. canaliculatus Orb. ibidem vol. ii, p. 60, pi. 
xviii, f. 18, 19. 
110. Tr. excavatus Lam. 
Tr. umbiliearis Chernn. 
Adeorbis Wood. (Vitrinella Adams). 
111. Adeorbis striatus Orb., Moll. Cuba, vol. 
ii, p. 63, pi. xviii, f. 29-31. 
Rotella semistriata Orb., ibidem, pi. xviii, f. 20-22. 
„ diaphana Orb., „ ,, f. 23-25. 
„ carinata Orb., „ „ f. 26.28. 
An extremely variable species. The above are a few names 
given by D'Orbigny. How many more have to be added want 
of reference to named, specimens alone prevents me from saying. 
Some of the forms recall A. subcarinatus Mont. 
Cyclostrema Marryat. 
112. o. sclirammi Fisch. Journ. de Conch. 1857, 
p. 287 pi., x, f. 11. 
Pleurotomaria Defrance. 
113. PL jxclai'isoniaiirt Crosse & Fischer, Journ. 
Conch. 1861, pi. v. Idem 1882, pi. i. 
Though the single specimen I obtained in 1890 came 
from Tobago I include it here as it probably inhabits the 
channel between that island and Trinidad . 9 
* A full sized figure of this shell was published in an English 
Conchological paper in 1892. An account of the shell was given in Proc. 
Zool. Soc. Nov. 1891 page 484. 
