39 



i888. Anomalo cardia EJirenbergi Jousseaume, Mem. Soc. Zool. France, I, p. 214. 



188g — gi. Arca [Anonialocardia] Ehrenbergi and A. pharnonis Kobelt in Martini, Chemn. Conch.- 



Cab. (N. F.), VIII (2), Arca, p. g2, pi. XXV, figs. 5, 6: and p. 225. 

 iSgo. Anovialocardia Ehrenbergi Paetel, Cat. Conch. Samm., III, 215. 

 iSgo. Anovialocardia Ehrenbergi Vassel, Bull. Soc. Hist. Nat. d'Autun, III, p. 26. 

 ig03. Arca Ehrenbergi Lamy, Journ. Conchyliol., LI, p. 323. 

 igo/. Arca (Anadara) Ehrenbergi Lamy, Journ. Conchyliol., LV, p. 226. 

 igi/. Arca {Anadara) Ehrenbergi Lamy, Bull. Mus. d'Hist. Nat. Paris, XXIII, p. log. 

 igig. Arca ehrenbergi Odhner, Ark. Zool., XII, N° 6, p. 7. 



ig26. Arca [Anadara) Ehrenbergi Pallary, Mem. Inst. Egypt., XI, p. 113, pi. XIV, figs. g, i — 3. 

 ig2g. Arca [Anadara) Ehrenbergi Dautzenberg, Faun. Colon. Français., III, Fasc. IV, p. 580. 



I hâve nothing to add to the detailed descriptions of this species by Dunker and Kobelt 

 and the additional notes regarding its relationships and synonymy by Lamy. The outhne of the 

 shells, which I refer to this species, is oblong-ovate ; they are of a dirty white colour, arid the 

 number of radial ribs on them is 27 — 28. The largest spécimen in the "Siboga" collection is 

 38 mm. long. 



Distribution : — A. ehrendergi was hitherto known from the Red Sea and Madagascar. 



The "Siboga" Expédition obtained shells from the following localities : — Madura Strait 

 (St. 2), Molo Strait (St. 51), Bay of Nangamessi, Sumba (St. 53), St. 320 (6° 5' S., ii4°7'E.) 

 and the straits of Macassar. 



8. Arca [Anadara) dautzenbergi Lamy. 



ig07. Arca [Anadara) Dautzenbergi, Lamy, Journ. Conchyliol., LV, p. 232, pi. III, figs. g — 11. 

 igog. Arca dautzenbergi Hedley, Proc. Linn. Soc. N. S. Wales, XXXIV, p. 422. 



Lamy's description of the species is very detailed and the only point of interest to note 

 about the spécimens from the Dutch East Indies is that almost ail the ridges are divided by 

 a fine médian furrow running^ almost to the umbonal reg-ion ; the ridges further are g^ranulated. 



Distribution : — This interesting species was described by Lamy from a spécimen from 

 New Caledonia, and Hedley later recorded it from off the Coast of Oueensland, Australia. 



In the "Siboga" collection A. datttzenbergi is represented by a number of odd valves, 

 mostly bleached shells from the following Stations: — Bay of Bima, 55 mètres (St. 47), Bay 

 of Badjo, West of Flores (St. 50), West of Kwandang Bay entrance (St. 116), Waru Bay, 

 north of Ceram (St. 174), and Kei Islands (St. 260). 



9. Arca [Anadara) tricenicosta Nyst. 



1844. Arca radiata Reeve (non Sowerby), Conch. Icon., Arca, II, pi. VI, fig. 40. 



1848. Arca tricenicosta Nyst, Mém. Acad. Roy. Belgique, XXII, p. 74. 



1857. Arca [Anomalocardià] radiata Adams, H. & A., Gen. Rec. Moll., II, p. 536. 



1860. Arca radiata Reeve, Elem. Conch., II, p. 93. 



1869. Anovialocardia radiata Frauenfeld, Abhand. Zool. -Bot. Ges. Wien, XIX, p. 886. 



1882. Scapharca Philippiana Dunker (non Nyst), Ind. Moll. Mar. Japon, p. 235. 



1888. Anovialocardia radiata Jousseaume, Mém. Soc. Zool. France, I, p. 214. 



i88g. Arca [Scapharca) Philippiana Kobelt in Martini, Chemn. Conch. Cab. (N. P~.), VIII (2); 



Arca, p. go, pi. XXV, figs. i, 2. 

 i8go. Anovialocardia radiata Paetel, Cat. Conch. Samm., III, p. 215. 

 ig07. Arca [Anadara) radiata Lamy, Journ. Conchyliol., LV, p. 231. 

 igir. Arca [Anadara) radiata Pelseneer, "Siboga" Lamellibranches (Anat.), p. 14. 



