88 BIVALVE SHELLS. 



Venus triangularis, Mont. Test. Brit. p. 121. pl. 3. f. 3. & p. 577. 



Mat. Linn. Trans. viii. 83. 



Turt. Conch. Dict. p, 238. 



Wood, Ind. Test. pl. 7- f. 35. 

 Cyprina minima, Turt. Dithyra Brit. p. 137. 



Flem. Brit. Anim. p. 444. 



Thorpe, Brit. Mar. Conch. p. 82. f. 102. 



Hanley, Recent Shells, i. 95. 

 Cyprina triangularis, T?irt. DithyraBrit. p. 136. pl. 11. f, 19, 20. 

 Cytherea triangularis, Macgill. Moll. Aberd. p. 268. 

 Cytherea apicahs, Phil. Moll. Sicil. i. 40. pl. 4. f. 5. 

 Circe triangularis, King, Ann. Nat. Hist. xv. 112. 

 Cytherea CyrilH, Phil. Moll. Sicil. ii. 32. 



Hanley, Recent Shells, Suppl. pl. 15. f. 26. 

 Cytherea minima, Brown, III. Conch. Gr.Brit. p. 92. pl. 37- f. 3. 

 C}i;herea minuta, Brown, III. Conch. p. 92. pl. 37. f. 4. 

 Circe minima, Forbes Sf- Hanley, Brit. Moll. p. 447. pl. 2^- f. 4, 

 5, 6, 3, & pl. M. f. 3 (animal). 



Sow. Thes. Conch. p. 65J. pl. 138. f. 18-21. 

 An eadem ? Venus inquinata, Lamk. An. s. Vert. v. 607. no. 88? 

 Hab. Oceanus Europseus ; mare Mediterraneum. 



b. Testa divaricatim striata vel sulcata. 



16. ClRCE NUMMULINA. 



C. testa suborbiculata, depressa, albida, basi purpureo-nigricante, 

 striis longitudinahbus bifariam divaricatis ; natibus subacutis 

 prominulis. 



Cytherea nummulina, LamJc. An. s. Vert. ed. 2. vi. 321. no. 58. 



Circe nummuiina, Gray, Cat. Cyth. Anal. viii. 307. 

 Sow. Thes. Conch. p. 652. pl. 138. f. 27- 

 Hab. America centralis. 



17- ClRCE DIVARICATA. B.M. 



C. testa subelongata, depressa, postice subacuminata ; costis vix 

 noduliferis, numerosis, postice obliquis, medio radiatis, prope 

 angulum posticum acutangulatim confluentibus. 



Favanne, Conch. pl. 46. f. E 2. 



Encycl. Meth. pl. 271. f . 5 & pl. 274. f. 2. 



Pectunculus, Lister, Conch. pl. 310. f. 146. 



Venus divaricata, Chemn. Conch. vi. 317. pl. 30. f. 316. 



Omel. p. 3277. no. 35. 



Brooks, Introd. p. ^^. pl. 2. f. 24. 



Dillw. Cat. i. 200. no. 96. 



Wood, Ind. Test. pl. 8. f. 94. 



