330 TESTACEOUS MOLLUSCA. 



T. corniformis, p. 4, t. 9, f. 49 ... T. nana, p. 4, t. 11, f. 22 ... 

 T. malleolus, p. 4, t. 11, f. 23. 



On Pholas (p. 5). Consult the monographs of Spengler (Skriv. 

 Nat. vol 2, pt. 1), and Sowerby (Th. vol. ii.) ; see, too, Gray's list of 

 species (Ann. Nat. 1851, vol. 8), Wieg. Arc. 1852, and Pr. Philad. 

 vol. 4. 



P. silicula, p. 6, t. 9, f. 58 ... P. truncata, p. 6, t. 9, f. 26 ... 

 P. crucigera, p. 6, t. 11, f. 53 ... P. Campechensis, p. 6, t. 9, f. 44 ... 

 P. clausa l (of Gray's MS. i.e. tablet in British Museum), p. 6, 1. 11, 

 f. 8 ... P. acuminata, p. 8, t. 9, f. 30 ... P. Californica, p. 8, t. 9, 

 f. 43. 



On Gastrocjeena (p. 10). Consult Spengler in Dankse Viden- 

 skabernes Selskab Skrivter, vol. ii. (1783). See, too, G. dentifera 

 (Dufo, An. Sc. Nat. 1840) and G. gigantea (Desh. Traite Elem. 

 t. 2). 



G. Mytiloides, p. 10, t. 9, f. 37 ... G. truncata, p. 10, t. 9, f. 40 ... 

 G. ovata, p. 10, t. 9, f. 42. 



Xylophaga dorsalis, p. 10, t. 11, f. 21 ... X. globosa, p. 10, t. 9, 

 f. 51. 



On Solen. Consult Spengler's monograph (Skriv. Nat. vol. 3, 

 pt. 2) of the Linnean genus Solen, and the monograph of restricted 

 Solens in the ' Illustrations Conchyliologiques.' See, too, Gould, 

 Pr. Bost. vol. 3, Philippi in the Zeit Mai. 1848, Dunker in the 

 Zeit. Mai. 1850, 1852, and Proc. Philad. vol. 3. 



S. corneus, p. 11, t. 10, f. 42 ... 8. scalprum, p. 12, t. 11, f. 26 ... 

 8. Sloanii, p. 12, t. 11, f. 18 ... S. Guinensis, p. 12, t. 13, f. 28 ... 

 S. brevis, p. 12, t. 13, f. 42 ... 8. Thuelcha, p. 13, t. 10, f. 30 ... 

 8. ambignus, p. 13, t. 11, f. 17 ... 8. Dombei, p. 13, t. 9, f. 19 ... 

 8. Javanicus, p. 14, t. 11, f. 19 ... S. candidus, p. 15, t. 11, f. 29 

 ... S. solidus, p. 15, t. 11, f. 29 ... S. costatus, p. 15, t. 9, f. 28 ... 

 8. medius, p. 15, t. 10, f. 18 ... 8. novaculina, p. 16, t 10, f. 7 ... 

 8. Californianus, p 16, t. 10, f. 4 ... 8. acutidens, p. 17, t. 11. f. 36 

 ... 8. acuminatus, p. 17, t. 11, f. 35. 



Solen Niveus, Han. 1. 12,/. 40. — After S. acinaces, Hani. Z. P. 

 1843. Linear, snow-white, about four times as broad as long, some- 

 what depressed, decidedly curved, abrupt and scarcely convex at the 

 shorter end, attenuated and rounded at the other extremity; epi- 

 dermis glossy, yellowish ; hinge terminal, a single rounded tooth in 

 each valve. y...3. 



1 I cannot find this name (the reference was communicated to me 

 by the author himself) in any work of Bowdich's. The species is veiy 

 like Ch. f. 862, termed explanata by Spengler (in Schrot. Einl.). 



