APPENDIX. 359 



Venus subtmbrioata (t. 15, f. 57), Sow. Z. P. l835.Sow. Th. 2, 

 t. 154, /. 35, 6, 7. — Anomolocardia s. Desk. Verier. p. 117. Rounded 

 heart-shaped, very inequilateral, very solid, subventricose, pale brownish 

 fulvous variegated with patches of livid chestnut, concentrically ridged, 

 and radiatingly costellated ; umbonal ridges distant, briefly lamellar, 

 the rest ascending in steps, as it were, from the greatly arcuated and 

 coarsely crenated ventral margin ; costelloe rounded, numerous, quite 

 as broad as their intervals ; ligamental edge much sloping ; anterior 

 slope excavated, its circumference angulated ; lunule large, cordate, 

 impressed; ligament sunken ; inside whitish. tI-'Itt- C. America. 



Venus oblonga (t. 16, f. 1). — Dosina o. Gray, Dief. Zeal. — 

 V. o. Sow. Th. 2, p. 732, t. 161, /. 197. — Desk. Vener. p. 103.— 

 V. Zelandica, Gray, in Yates, N. Z. teste Desh. Transversely sub- 

 ovate, a little subcordiform, extremely inequilateral, blunt at both 

 ends, solid, very ventricose, dirty whitish or rust-coloured, rather 

 closely encircled throughout with lamelliform lyrre, which are slightly 

 subcrenulated behind by radiating striolse, the intervals broader and 

 elsewhere either smooth or minutely striolated concentrically ; ventral 

 edge closely denticulated, subarcuated ; ligamental edge not much 

 sloping ; ligament scarcely raised ; beaks much inclined ; lunule 

 large, cordiform, flat, defined by a deep groove ; inside wholly white, 

 pallial sinus very small, acutangular, lateral scars very large. If. . .2^. 

 N. Zealand. 



Venus laminosa* (t. 16, f. 11), Turt. D. B. 148, pi. 10,/. 4. Sub- 

 ovate-cordiform inequilateral, compressed, subangulately attenuated 

 in front, squalid or pale ochre-yellow, sometimes subarticulated with 

 liver-colour upon the raised sculpture ; rather closely encircled with 

 numerous sublamellar ribs, the intervals of which are either 

 smooth or concentrically incised; ventral edge finely crenulated, 

 arcuated and much ascending behind ; anterior slope retuse ; lunule 

 well-defined ; wholly whitish within, f. Britain. 



Venus Kelletii (t. 16, f. 47), Hinds, Sulph. p. 65, t. 19, /. 5. — 

 Sow. Th. 2, p. 721, t. 155, /. 64.— Chione K. Desh, Vener. p. 127. 

 Subovate-cordiform, subtruncately attenuated in front, narrowly 

 rounded behind, inequilateral, thickish, more or less ventricose, fawn- 

 coloured in radiating shades in the middle, whitish at the extreme 

 sides ; sculpture at the umbonal region (and in the young) consisting 

 entirely of shelving flattened belts and close- set interstitial radiating 

 sulci, elsewhere, except at the sides (beyond the coloured surface) 

 which are radiated, as it were, with concentric lamellae that do not 

 extend to the angular limit of the ligamental slope, smooth, except 

 for the distant coarse and deep concentric sulci ; ventral edge denti- 

 culated within, arcuated, rising at both ends ; beaks acute, recurved ; 

 lunule large, pallid, well-defined, with pouting edges; ligament 



