284 188 



Afar/esiasfri'afa, Linné, H. & A. Adams, Genera of rec. Moll., II, p. 330, pi. 90, fig. 5. 

 Pholas — — P. Fischer, .Journ. de Conchyl., VIII. 1860, p. 337. 



Martesia — — Tryon, Proc. Acad. Nat. Se. Philadelphia, 18ti2, p. 220. — Catal. of rec. Moll. Ord. 



Pholadacea, p. 10, No. 13. 

 — — — Clessin in Martini u. Chemnitz, Conchyl. Cabin., XI Bd., 4 Abth., p. i5. No. 13, 



pi. 10, figs. 2—3 and 7-8. 

 Pholas {Marlesia) striata L., E. v. Martens, Süss- u. Brackwasser-Moll. d. Ind. Archip., 1897, p. 281. 

 Martesia striata, Linné, Hedley, Australasian Assoc. Adv. Science, VIII, 1901, p. 249, pi. 10, figs. 10—11. 

 Pholas pusillus, — Syst. Nat., ed. X, 1758, p. 070, No. 14. 



— Lignorum, Spengler, Beschäft. d. Berl. Gesellsch. Naturf. Freunde, IV, 1779, p. 167, pi 5, figs. 1 — 5. 



— Skrivter af Naturh. Selsk., II, 1 H., 1792, p. 95, No. 9 Pholas pusillus;. 



^- nana, Pulteney, Catal. of the Birds, Shells, etc. of Dorsetshire, 1799, p. 27. 



— clavata, Lamarck, Hist. nat. d. anim. s. vert., V, 1818, p. 446, No. 9. — éd. 2, VI, p. 46, No. 9. 



— conoides, Fleming, History of Brit, animals, 1828, p. 457. 



— falcata, Wood, Gener. Conchology, 1835, p. 84, pi. 16, figs. 5 — 7 (fide Tryon). 



— semicostata. Lea, Proc. Boston Soc. Nat. Hist., 1, 1844, p. 204 (pi. 24, fig. 1). 



— terediniformis, Sowerby, Proc. Zool. Soc. London, XVII, 1849, p. 161, No. 5. — Thesaur. Conchyl., 



II, p. 490, No. 18, pi. 108, figs. 97— 98, P. Teredinœformis (fide Tbyon). 



Near Koh Samit and Koh Tulu (boring in the swampy layer of cocoanuts 

 which float upon the surface of the water). West of Koh Chang (boring in the 

 fruits of Terminalia Catappa L., which float upon the surface). 



Only small specimens as much as 5 mm. in length. 



Between Bangkok and Kampot in the Gulf of Siam (Morlet). 



Distribution: — Singapore, Pulo Penang, Mergui Archip., Burma (in the 

 trunks of the teak-tree), Madras, Tranquebar, Gulf of Manaar, Bombay, Aden, Ins. 

 Zanzibar, Mozambique. — Annam, southern China Sea, Japan, Philippines, Borneo, 

 Batavia and Molluccas (in piles), Arafura Sea, Cape York, Cooktown (Queensland), 

 Sydney, New Caledonia. — East coast of America: South Carolina, Florida, 

 Bermuda Isis., Texas, Greater and Lesser Antilles (Guppy and Gabb record it from 

 pliocene formations on Trinidad and in Costa Rica), South America as far as Rio 

 de Janeiro. — The coasts of Europe, e. g. along England and France and in the 

 Mediterranean it has been taken in floating timber and boring in ships. 



Spengler's original specimens' of P. lignorum from Tranquebar agree precisely 

 with the specimens of P. striata L. from St. Thomas. Several other boring forms 

 such as Naranio lapicida, Chemn., Coralliophaga coralliophaga, Chemn., Modiolaria 

 coralliophaga (Chemn.) Gmel., Lithodomus cinnamomea, Chemn., and others have 

 almost the same wide and peculiar geographical distribution as the present species. In 

 the above-mentioned cocoanut from Koh Samit many quite young, living specimens, 

 3 — 5 mm. in length, were found, without Galium, and of the accessory plates only 

 a "Protoplaxe" is found, which in form differs from those of the full-grown 

 individuals." 



' In the Zoological Museum of the University of Copenhagen. 



^ See P. Fischer: "Études sur I. Pholades," Journ. de Conchyliologie, VIII, 1860, p. 340. 



