18 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Genus Scylla de Haan, 1833 



Scylla serrata (Forskal) 



Cancer serratts ForskM, 1775, p. 90. 



Scylla serrata (Forsk&l). — Stephenson and Campbell, 1960, pp. 111-5, fig. 2N, 



pi. 4 (fig. 4), pis. 5N, 6C.— Crosnier, 1962, pp. 72-3, figs. 128, 129.— 



Stephenson and Rees, 1967, p. 55. 



Material examined. — 1 ovig. female (ca. 86 mm), Anton Bruun 

 Cr. 1, India, Visakhapatanan Port, July 31, 1963. 



Habitat micertain. 



Distribution. — East Africa to Tahiti including Japan, Australia, 

 and New Zealand. 



Genus Thalamita Latreille, 1829 

 Thalamita admete (Herbst) 



Cancer admete Herbst, 1803, pp. 40-1, pi. 57 (fig. 1). 



Thalamita admete (Herbst).— Sakai, 1939, pp. 414, 421-2, pi. 85 (fig. 1).— Stephen- 

 son and Hudson, 1957, pp. 320, 324-6, figs. 21, 31, pi. 1 (fig. 1), pis. 7A, 

 lOA.— Crosnier, 1962, pp. 96-7, figs. 154, 157, 162-4, 168.— Stephenson and 

 Rees, 1967, p. 56. 



Thalamita edwardsi Borradaile. — Crosnier, 1962, p. 98, fig. 158. 



Thalamita dispar Rathbun, 1914, p. 657, pi. 1 (fig. 4). 



Material examined.- — 3 males (ca. 5-26 mm), Sta. No. B9. 2 males 

 (9, 13 mm), 1 ovig. female (10 mm), Sta. No. Bl6. 



Dredged, 12-24 ft, sandy bottoms, lagoons at Cocos Keeling I. 



Remarks. — Stephenson and Rees (1967, pp. 56-57) have detailed 

 the synonymy of this species. Examination of Rathbun's (1914) 

 type of T. dispar by the senior author confirms that it belongs to T. 

 admete. Stephenson made the following notes: 



Resembles T. edwardsi in (1) cardiac ridges of carapace just recognisable, (2) 

 posterior mesobranchial ridges represented by a small pimple, (3) hands of 

 chelipeds smooth, no granules on outer surface. Uppermost carina of outer sur- 

 face coarsely beaded, middle and lowermost smooth, (4) no trace of fourth antero- 

 lateral tooth on right, at most a rudiment on left. Male pleopods — resembling 

 Fig. 20d in Stephenson and Rees MS. 



Distribution. — Red Sea and East Africa to Tahiti. 



Thalamita chaptalii (Aiidoiiin) 



Portunus chaptalii Audouin, 1826, p. 83 [figs, in Savigny, 1809, pi. 4 (fig. 1)]. 

 Thalamita chaptali (Audouin). — Stephenson and Hudson, 1957, pp. 327-8. figs, 



2r, 3F, pi. 1 (fig. 3), pis. 7C, lOB.— Forest and Guinot, 1961, p. 34, figs. 



21A, B.— Sankarankutty, 1961a, p. 106.— Crosnier, 1962, pp. Ill, 113, figs. 



184, 189, 191.— Stephenson and Rees, 1967, p. 64. 



