64 



4- Glycyjiieris reevei (Mayer). 



1843. Pectunculus angulatus Reeve (non Lamarck), Conch. Icon., I, Pectunculus, pi. VI, fig. 30. 



1843. Pectunculus angulatus Hanley (non Lamarck), Rec. Biv. Shells, p. 163. 



1860. Pectunculus angulatus Reeve (non Lamarck), Elem. Conch., II, p. 95. 



1868. Pectunculus Reevei Mayer, Vierteljahr. Naturf. Ges. Zurich, XIII, p. 23. 



1868. Pectunculîis Reevei Mayer, Cat. Mus. Zurich, III, p. 5. 



1879. Axinaea Hanleyi Angas, Proc. Zool. Soc. London, p. 418, pi. XXXV, fig. 3. 



1905. Pectunculus angulatus Hidalgo (non Lamarck), Rev. Acad. Cienc. Madrid, III, p. 52. 



191 2. Pectunculus Reevei Lamy, Journ. Conchyliol., LIX, p. 109. 



After a careful comparison of the type-shell of Axùiaea hanleyi Angas, of unknovvn 

 habitat in the British Muséum (Nat. Hist.) London, and another shell from Fiji Islands which 

 resembles it in ail respects, with shells of G. reevei (Mayer) I hâve no doubt that Angas's species 

 is the same as Mayer's species from the Philippines. I hâve also examined the type shell of 

 Angas's A. nova-caledoniensis ^) and find that it differs from G. reevei in the shell being more 

 uniformly coloured, lighter and less inflated; the more regular outline, narrow and shorter 

 igamental area, and less prominent sculpture also help to distinguish it from the latter species. 

 G. reevei is allied to G. lividus (Reeve), but is distinguished by the outline and form of the 

 shell, the less prominent umbones, hinge more arched and more distinctly impressed sculpture. 



Distribution : — G. reevei has so far been recorded from the Philippines and New Caledonia. 



The "Siboga" Expédition obtained a fair number of young fresh spécimens from Anchorage 

 off Kampong Kelang, South Coast of Manipa Island (St. 184), Banda Anchorage (St. 240), 

 dredged at 36 mètres at Rumah-Kudah Bay, Roma Island (St. 279) and Anchorage East of 

 Dangar Besar, Saleh Bay (St. 313). Dead shells were also obtained at Anchorage off Djangkar, 

 Java (St. 4), Sailus Ketjil, Paternoster Islands (St. 37), Western Entrance Samau Strait (St. 59), 

 Pulu Sebangkatan, Bornéo Bank (St. 81), Muaras Reef, inner side : East coast of Bornéo (St. 91), 

 Anchorage off Lirung, Salibabu Island (St. 133), Tuai Anchorage, Kei Island (St. 258), and 

 Anchorage betvveen Nusa Besi and the N. E. point of Timor (St. 282). 



The measurements of the largest spécimen in the "Siboga" collection are: — Length 

 22.2 mm., Pleight 21.3 mm., Diameter 15.6 mm., while those of the largest shell in the British 

 Muséum are: — 50 mm. X 47.5 mm. X 31.8 mm. 



5. Glycymeris leniiico status (Reeve). 



1843. Pectunculus tenuicostatus Reeve, Proc. Zool. Soc. London, p. 80. 



1843. Pectunculus tenuicostatus Reeve, Conch. Icon., I, Pectunculus, pi. VI, fig. 35. 



1852. Pectunculus tenuicostatus Forbes, Voy. "Rattlesnake", II, Moll., p. 366. 



1856. Pectunculus tenuicostatus Hanley, Rec. Biv. Shells, p. 375, pi. XIX, fig. 375. 



1858. Axinaea [Pectunculus) tenuicostatus Adams, H. & A., Gen. Rec. Moll., II, p. 543. 



1867. Axinaea [Pectunculus) tenuicostatus Angas, Proc. Zool. Soc. London, p. 932. 



1889. Pectunculus tenuicostatus Whitelegge, Journ. Proc. Roy. Soc. N. S. Wales, XXIII, p. 243. 



1891. Pectunculus tenuicostatus Fischer, P., Journ. Conchyliol., XXXIX, p. 313. 



1912. Pectunculus tenuicostatus Lamy, Journ. Conchyliol., LIX, p. 105. 



The two stray valves, which I assign to this species with some doubt, were obtained by 



l) Angas, G. F. — Proc. Zool. Soc. London, p. 417, pi. XXXV, fig. 2 (1879). The name of the species was changed to caledonica 

 by Crosse, Journ. Conchyliol., XXVUI, p. 272 (1880). 



