158 THE VOYAGE OF H.M.S. CHALLENGER. 



Family C a n D 1 1 D ^:. 

 Subfamily Cardiin.e. 

 Cardium, Liune. 

 Cardium (Acanthocardium) setosum, Eedfield. 



Cardium setosum, Eedfield, Ann. Lyceum Xat. Hist, New York, 1846, vol. iv. pi. v. p. 168, 

 pi. xi. figs. 1, a, h, c. 



Habitat. — Station. 212, soutli of the Philippine Islands, in 10 to 20 fathoms; sand. 



This interesting species was originally described from Chinese examples. 



With it, in my opinion, should be united the Cardium latum of Chemnitz, Reeve, 

 Romer, and other authors, which appears to be a different shell from that described by 

 Born. The latter author's description (Test. Mus. Vindobon., p. 48) certainly accords 

 better with the well-known. Cardium bullatum of the West Indies than with the shell 

 identified by the above authors. 



Having very carefully compared the shell figured by Reeve (Conch. Icon., fig. 21) 

 with examples of Cardium setosum, I am unable to discover any distinctions, except a 

 slight difference in form, a character veiy variable in many species of this genus. 



Cardium [Acanthocardium) papillosum, Poli. 



Cardium papillosum, PoU, Test. utr. SiciI.,vol. ii. p. 56, pi. xvi. figs. 2-4. 



Cardium papillosum, Eeeve, ConcL Icon., voL ii. fig. 111. 



Cardium papillosum, Philippi, Enum. Moll. Sicil., voL i. p. 51, vol. ii. p. 38. 



Cardium papiJlosum, Hanley, Cat. Eec. Shells, p. 137, pi. xvii. fig. 6. 



Cardium papillosum, Jeffreys, Brit. Conch., vol. ii. p. 275, vol v. pi. xxxv. fig. 1. 



Cardium {Acanthocardium) papillosum, Eomer, Conch. -Cab., ed. 2, p. 32, pi. xi. fig. 1. 



Habitat. — Station 75, off Fayal, Azores, in 50 to 90 and 500 fathoms ; and off 

 Tenerife,^Canarie.s, in 70 fathoms. 



Cardium [Acanthocardium) sueziense, Issel (PI. VIII. figs. 2-26). 



Cardium sueziensis, Issel, Mai. Mar. Kosso, p. 76, pi. iii. fig. 4 (not good). 

 Testa allia, iuaequilateralis, mediocriter convexa, ii'regulariter rotundata, postice lata, 

 oblique subtruncata, antiee angustior, arcuata, costis radiantibus circiter 25 con- 

 fertim' tuberculatis ornata. Margo dorsi anticus brevis, arcuatim descendens, posticus 

 rectiusculus, sursum incliuatus. Umbones parvi, paulo supra marginem dorsalem 

 producti. Pagina interna alba, radiatim sulcata, ad marginem fortiter denticuJata. 



This species is about as long as high, irregularly rounded, narrower in front than 

 behind, rather inequilateral, pure white, and ornamented with about twenty-five tuber- 



