NATURAL SCIENCES OP PHILADELPHIA. 461 



Montagu, Test. Brit., p. 7. Nyst, Foss. Belg., p. 38. Oken, Zool., p. 216. 

 Oken, Allg. Naturg., vi. p. 274. Osier, Phil. Trans., 1826. Pallas, 

 Misc. Zool. Pallas, Reise, Slid. Russ., p. 418. Pallas, Tabl. Pbys., p. 

 40. Payraudeau. Coq. de la Corse, p. 26. Pennant, Brit. Zool., iv. p. 

 147. Philippi, Enum. Moll. Sicil., i. p. 2, and ii. p. 3. Pliny, Hist. Nat. 

 lib., xxi. Cap. 80. Poli, Test. utr. Sicil. Potiez et Michaud, Gallerie 

 des Moll., ii. p. 270. Pultney, Dorset. Cat. Quatrefages, Ann. Sc. Nat., 

 3d ser., xi. p. 21. Rang, Manuel, p. 346. Recluz, Rev. et Mag. Zool., 

 2d ser., i. p. 64. Reeve, Conch. Syst., p. 37. Roissy, Moll., vi. p. 454. 

 Scacchi, Cat. Coq. Reg. Neap., p. 8. Schroter, Einleit, ii. p. 571. Schu- 

 macher, Essai d'un Nov. Syst., p. 94. Schweigg, Naturg, p. 699. Sel- 

 lius, Commerc. Liter. Nov., p. 409. Sellius, Hist. Nat. Teredinis. 

 Sowerby, Genera. Sowerby, Conch. Man,, ed. 1, p. 5 ; ed. 2, p. 272. 

 Sowerby, Illust. Brit. Shells, t. 1. Spengler, Skrivt. Nat., ii. pt. 1, p. 

 99. Stimpson, Bost. Proc, iv. p. 113. Stimpson, Shells, N. E., p. 26. 

 Swainson, Malacol., p. 364. Thompson, Ann. and Mag. Nat. Hist., xx. 

 p. 174 Thompson, Edinb. Phil. Mag., xviii. p. 121. Thorpe, Brit. Mar. 

 Conch., p. 27. Turton, Conch, dithyra, p. 13. Tufts, Proc. Essex Inst., 

 p. 26. Wheatley, Catalogue. Woodward, Manual, p. 329. 



Serpula. Da Costa, Brit. Shells, p. 21. 



Fistulana, (part.) Lamarck, Anim. sans. Vert., v. p. 438 ; id. 2d edit., vi. p. 35. 

 Blainville, Diet. Sc. Nat.,xvii. p. 82. Blainville, Mal.,p. 579. Favanne, 

 Conchyl. Chenu, Man. Uonchyl., ii. p. 12. 



Guetera, (part.) Gray, Ann. and Mag. Nat. Hist., 2d ser., viii. p. 381. 



Uperotis, (part.) Adams, Genera, ii. p. 333. 



Bruma, Vallisnieri, Op. Phys. Med., ii. 



Pholas, (part.) Miiller, Prodr. Zool. Dan., p. 251. Fabricius, Fauna Groen., p. 

 427. 



Dentalium, (part.) Linnaeus, Faun. Suec. 380. 



Ligniperda, Sellius. 



Xylophagus, Gronovius, Zooph. p. 258. Sellius. 



Solen, Klein, De Tub. 



Siphonium, (part.) Browne. 



Species. 



a. Valves externally smooth and glossy , or regularly transversely striated. 

 T. b i p a r t i t a, Jeffreys. 



T. bipartita, Jeffreys, Ann. and Mag. Nat. Hist. 3d ser. vi. p. 123. 



Hah. " In cedrela odorata (or West India Cedar.), thrown ashore, perhaps 

 by the gulf stream, at Guernsey, with T. spatha." Jeffreys. 



Description. " Tube ? valves oval, thin, compressed, covered with a 



brownish epidermis ; body smooth and glossy ; anterior auricle moderately de- 

 veloped, angle rather obtuse, striae very numerous and crowded ; posterior auri- 

 cle rounded, small but prominent, appressed to body, apex placed below the 

 crown,' internal margin indistinct ; fang narrow and pointed; tubercle small; 

 apophysis narrow. Pallets resembling those of T. p e d i c e 1 1 a t a, but longi- 

 tudinally divided into two equal parts by a deep furrow; stalk cylindrical, 

 rather longer than pallet. 



Dimensions. " Length (of valves) 4-20ths ; breadth 3-20ths." Jeffreys. 



T. e x c a v a t a, Lukis. 



T. excavata, Lukis, MSS. Jeffreys, Ann. and Mag. Nat. Hist. 3d ser. vi. p. 123. 



Hab. "In drift fir. Guernsey and Sussex. Rare." Jeffreys. 



Description. " Tube short, rather solid, and detached from the wood, slight- 

 ly curved, jointed at intervals, with a very few transverse wrinkles at the open- 

 ing, and an indistinct siphonal ridge. Valves roundish oval, thin, compressed; 



1862.] 



32 



