140 
PROCEEDINGS OF TIIE VICTORIA INSTITUTE. 
Periploma Schumacher. 
133. I?. inequiyalvis Schum. 
1)4. 3F*. orbicularis Guppy, Proc. Scient. Assoc. 
Trinidad, vol. ii, (December 1881) p. 
177, pi. vii, f. 13. 
Order Solenacea. 
Solen Linne. 
135. S. ofoliqtras Spengl. Wood, Appendix, pi. xi, f. 17. 
S. ambiguus Lam. Chenu, Conch, vol. ii, f. 86. 
136. s. niveus Hanley. Wood, Appendix, pi. xii, f. 40. 
Solecurtus Blainville. 
137. S. caribeus Lam. 
S. gibbus Spengl. S. guinensis Dillwyn. 
Order Myacea. 
Corbula Brugnieres. 
Iol . C. CUbailiana Orb. Chenu, Conch, vol. ii, f. 137. 
C. knoxiana Adams, Contr. Conch, p. 238. 
139. C. caribea Orb. Moll. Cuba, pi. xxvii, f. 5-8. 
C. swiftiana Adams, Contr. Conch, p. 236. 
C. kjceriana Adams, 1. c. p. 237. 
I feel suie that the synonymy of these species could be very 
» e b increased. The genus could be treated something after 
the manner in which Krebs treated Rissoina. Most of Adams’ 
names are invalid. 
140 ' ^ * orn atissima Orb. (Sphena) Moll. Cuba, 
pi. xx vii, f. 13-16. 
Sphena alternata Orb. ibidem, f. 17-20. 
Order Mactracea. 
, . Mactra Linne'. 
* t Chemn. Wood, Ind. Test. Mactra 8. 
I - turgida Gmel - Chenu, Conch, vol. ii, f. 223-4. 
■ guadelupensis Ilecluz, Jour. Conch. 1832, p. 
249, pi. x , f. 4. 
