MARINE MOLLUSCA, 625 
anteriores squamis transversis subgranuliformibus subconfertis instructae, posteriores haud granulatae 
sed transversim tenuissime striatae. 
Longit. 15 mm., alt. 12, diam. 84. 
Remarkable for its somewhat compressed and quadrate form, the slender radiating sulei and 
the slightly raised ribs, of which only the anterior half bear transverse granules, those on the 
hinder half of the shell being only very finely transversely striated. The colour is entirely white 
excepting the dorsal margin just in front of the umbones, which is stained with pink. 
341. Cardium sueziense, Issel, 21, 39,0. II, X, XV. 
342. Cardium (Laevicardium) lobulatum, Deshayes, 12,c. IJ, III, V, VII. 
343. Cardium (Laevicardium) australe, Sowerby, 37,77. IX, XII, XIII, XV. 
344. Cardium (Laevicardium) biradiatum, Bruguiére, 37, //. V, VII, IX, XII. 
345. Cardium (Ctenocardia) victor, Angas, 4. VIII. 
The ribs on the greater part of this beautiful shell are alternately larger and smaller, the 
former being spinosely squamate and the latter only very delicately scaled, On the posterior end 
the costae are about equal in stoutness and ornamented with short scale-like spines. 
346, Cardium (Ctenocardia) fornicatum, Sowerby, 37,//. V, X. 
Family CHAMIDAE. 
347. Chama jukesi, Reeve, 37,/V. I. 
348. Chama imbricata, Broderip, 37,/V. IX. 
Family CYPRINIDAE. 
349. Meiocardia lamarckii, Reeve, 37,//. V. 
350. Trapezium oblongum, Linn. 37,/. V. 
Family VENERIDAE, 
351. Venus reticulata, Linn. 37,X/V. I, IX. 
352. Wenus marica, Linn. 37,X/V. IX, XV. 
353. Wenus recognita, Smith, 39,a. II. « 
354. Wenus toreuma, Gould, 37, X///. IX. 
355. Circe scripta, Linn. 37,X/V. VI. 
356. Ibioconcha picta, Lamarck (Circe picta, Reeve, 37, X/V, 38.) III—V, VII, IX, X, 
357. Lioconcha sulcatina, Lamarck, 38. VIII, var. IX. 
The variety differs from the type in being smooth anteriorly, without the fine yet conspicuous 
concentric striae which usually occur at that end of the shell. In form and colour-pattern they 
exhibit scarcely any difference. One example however is entirely white. 
