730 MR. £. A. SMITH ON WEST-AFRICAN SHELLS. [Dec. 5, 



fusco tincta, nitens ; valves concentrice fortitcr coslatce ; valva- 

 rum margines inter crenulatce. 

 Diam. transversa 2 mill., diam. longit. \\. 

 Hab. Whydah. 



A very strongly ribbed species, one of the smallest of the genus, 

 and the first recorded from West Africa, I believe. 



28. Pecten pseudamtjsium, Klein, Meth. Ost.p. 134, pi. 9. f. 31. 

 Hab. Whydah. 



29. Ostrea guineensis, Dkr. Novit. Conchol. Suppl. ii. p. 43, 

 pi. 7. figs. 12-18. 



Hab. Whydah. 



This species was discovered by Dr. Tarns at Loanda, about 1400 

 miles south of Whydah. 



Brachiopoda. 



30. Lingtjla parva, sp. nov. (Plate LXXV. fig. 6.) 



Testa oblongo-ovalis, versus apicem parum attenuata, pallidojlavida, 



Icevis ; valvtx clause. 

 Diam. transversa 5 mill., diam. longit. 10. 

 Hab. Whydah. 



Pteropoda. 



31 . Balantium recurvum, Children, Journ. of Sci. Lit. & Arts, 

 1824. 



Hab. Whydah. 



Gasteropoda. 



32. Terebra festiva, Desh. Journ. de Conch, vi. p. 74, pi. 3. 

 f. 4. 



Hab. West Africa. 



33. Terebra (Myurella) marginata, Desh. Journ. de Conch. 

 vi. p. 86, pi. 4. f. 8. 



Hab. Whydah. 



34. Terebra (Mytjrella) sowerbyana, Desh. Journ. de 

 Conch, vi. p. 93, pi. 3. f.8. 



Hab. Whydah. 



35. Terebra (Abretia) knockeri, sp. nov. (Plate LXXV. 

 fig. 7.) 



Test a elongato-subulata, pallide brunnea ; infra suturam zona alba 

 et ad peripheriam angustiore ornaia ; apex fuscus ; anfractus 14, 

 primi 4 convexi, politi, cteteri plane convexi, longitudinaliter 

 costati, in anfraclu ultimo costce 1 6 ; apertura parva, angusta ; 

 columella fusco tincta, modice contorta. 



Long. 20 mill., diam. 4. 



Hab. Whydah. 



