152 
MOLLUSCOUS ANIMALS. 
Astarte lactea, t. 44./. 12. 
Inhabits Icy Cape. 
Astarte Banksii ? t. 44./. / 10. 
From the Northern Seas. 
to 
Astarte striata? t. 44./. 9. 
From the Northern Seas. 
Broderip and Soiverby, Zool. Journ • iv. p. 365. 
Gray in Brit. Mus. 
*■£ Sju ^ '^Ur £ 
Gray in Brit. Mus. 
■y-/* / 7 rr ~ 
Q / # 
Cardita borealis, t. 44. /. 1 . Conrad ■ Amer. Marine Conchology , cited by 
Gould in MS. 
Arcturus rudis. Rude Northern Cockle. Humphrey MS. 
Cardita crassa, t. 42./. 4, 4. 
Shell obovate, subqnadrate, very turgid, thick, rather rough, white with a brown periostracum ; anterior 
end very short, scarcely projecting beyond the umbones : surface of each valve covered with 15 or 16 broad, 
rounded radiating ridges, with narrow interstices ; decussated near the umbones which are involute ; ligament 
in a deep depression of the dorsal margin : internal margin irregularly undulated. 
Inhab. Found at Acapulco. 
Cardium fimbriatum, t. 42. / 1. 
Cardium fimbriatum. Lam. Hist. nat. des anim. sans vert. VI. parti, p. 5. 
The shell here figured is in a young and incomplete state, before it has begun to form the crested lamellce 
on the ribs at the margin, from which the name has been taken. 
Cardium biangulatum, t. 42./. 5. Broderip and Sowerby in Zool. Journ. iv. p. 
367. — Sowerby Conch. Illustr. Cardium. f. 2. 
Cardium Dion^eum, t. 42. f. 6. 6. Broderip and Sowerby," Zool. Journ. iv. p. 364- 
— Sowerby, Conch. Illustr. Cardium. /.I. l. # 
Inhabits Southern Pacific Ocean. 
Cardium Panamense, t. 42. f. 7. Sowerby, Zool. Proc. 1833. p. 85. — Conch. Il- 
lustr. Cardium. f. 21. 
Inhabits sandy mud at Panama. 
The representation is taken from a very young individual ; the species grows to be several inches in 
height. 
Pectunculus in/EQUAHS, t. 42. /. 3. Sowerby, Zool. Proc. Nov. 1832. p. 196. 
Inhabits sandy mud at Panama and Real Llegos. 
Arc A gradata, t. 43./. 1. Broderip and Sowerby, Zool. Journ. iv. p. 365. 
From Mazatlan, 
