769 



V. testa oblongo-subqiiadratCi inflata, postice subangulata, pal- 

 lida, intiis alba, postice violacea, vel castanea ; costellis concentricis 

 undulatis disruptis postice sublaminatis cincta. 



A tumid shell, with undulating lamiuse, not unlike the more 

 irregular varieties of Tapes perforans. 



Swan River, J)r. Bacon. Cuming's collection. 



24. Yenerupis paupercula (pi. clxv. f. 30), Besliayes, Pro. 

 Zool. Soc. 1853. 



V. testa parva, pallida, oblongo-subquadrata, compressa, con- 

 centrice irregulariter subundatim rugifera, postice truncata, liiante ; 

 postice intiis purpureo maculata. 



SmaU, very pale, of an oblong square, with irregular, rather 

 undulating ridges. A small patch of purple in the interior. 



Mazatlan. Cuming. 



25. Yenerupis siliqua (pi. ckv. f. 27), Besliayes, Pro. Zool. 

 Soc. 1853. 



Y. testa elongata, subquadrata, pallida, postice angulata ; levi- 

 ter radiatim striata, concentrice elevatim striata, striis postice in 

 lamiuas elevatas productas. 



New Zealand. Cuming's collection. 



26. Yenerupis planicosta (pi. clxv. f. 33), Besliayes, Pro. 

 Zool. Soc. 1853. 



Y. testa V. ohesa simili, sed compressa, postice vix angulata. 



The sculpture and posterior colouiing of this is so much like 

 V. ohesa, that the distinction must rest on the form of an irre- 

 gular shell. 



Mr. Cuming's collection ; locality unknown. 



27. Yenerupis tumida (pi. clxv. f. 34, 35), Sowerby,jun. 



Y. testa palHde flavida, ventricosa, concentrice minute striata; 

 costellis tenuibus subdistantibus cincta; antice brevi, angusta; 

 postice subangulata ; margine dorsali recto, depresso, castaneo. 



A light, inflated, yellowish, small shell, very finely striated be- 

 tween rather distant, irregular, thin concentric ridges ; it is short 

 and narrow in front, wide, rather angular and truncated behind ; 

 the dorsal line is depressed, and on one valve has a line of chest- 

 nut colour. 



Mr. Hanley's collection. 



28. Yenerupis cylindeacea (pi. clxv. f. 36, 37, 38), Bes- 

 hayes. Petricola cylindracea, Eev. Zool. Soc. Cuv. 1839, p. 358. 



