74 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
The pleopods of form B differ markedly from those of form A and 
related species such as 7. coerulerpes, T. crenata, T. prymna, and 
T. stimpsoni. But for the similarity in general facies, it would have 
been placed in a different “group” within the genus (see Stephenson 
and Hudson, 1957, pp. 320, 362). Form B is very close to T. foresti 
in the form of the male abdomen and in possessing a slender curved 
pleopod. It differs in having stouter pleopod bristling, in not having 
a recurved pleopod tip, and in the form of the front. 
In one of the form A males (fig. 266) the abdomen is much broader 
than long, but the pleopods are normal. 
DistRIBUTION.—Mozambique and Red Sea to Marshalls, Gilberts, 
and Fiji, including south Japan and north Australia. Recorded from 
New Zealand by Miers (1876) and by Heller (fide Doflein, 1904) 
and repeated by later workers, e.g., Stephenson (1961b). As Hutton 
(1882) has shown, this is almost certainly a mistaken locality. 
Thalamita demani Nobili 
Thalamita demani Nobili, 1905, p. 402; 1906a, pp. 209-210.—Crosnier, 1962, 
pp. 124-125, figs. 200, 208-209. 
Thalamita invicta de Man, 1895, p. 565, pl. 13, (figs. 11, 11a). 
Thalamita cooperi Stephenson and Hudson, 1957, pp. 331-332 (in part). 
Thalamita trilineata Stephenson and Hudson, 1957, pp. 359-360, figs. 2E, 3H, 
pls. 6 (fig. 4), 85, 10L.—Stephenson, 196la, p. 124, pl. 4 (fig. 2L). 
?Thalamita invicta Thallwitz, 1891, pp. 46-47, fig. 11. 
Not Thalamita cooperi Borradaile, 1902, pp. 206-207, fig. 37—Sankarankutty, 
196la, p. 122, fig. 113. 
MareEriau.—Philippines: Bataan, Simaluc, shore, Feb. 19, 1908, 
Alb., carapace, two chelae, and one walking leg only of a female 
(7 mm.). 
ReEMARKS.—Crosnier (1962) has clearly shown that T. trilineata 
Stephenson and Hudson (1957) is a synonym of 7. demani Nobili. 
Reexamination of the holotype of 7. trilineata (Aust. Mus. Reg. No. 
P.2863) and also specimens from Western Australia (W. Aust. Mus. 
Reg. No. 84-60) confirms this synonymy. 
In addition, two specimens in the Australian Museum (Aust. Mus. 
Reg. Nos. P.7546 (9 mm. female) and P.12754) reported as T. cooperi 
by Stephenson and Hudson (1957, pp. 331-332) belong to this species, 
as does a third (Aust. Mus. Reg. No. P.7546, 10 mm. female). 
Distrisution.—Red Sea, Madagascar, and both east and west 
Australia. 
Thalamita foresti Crosnier 
Figures 25f, 26d 
Thalamita danae de Man, 1887b, pp. 78-79, pl. 4 (figs. 8, 9). 
Thalamita forestt Crosnier, 1962, pp. 132-136, figs. 221-223, 229-231, pl. 13 (fig. 1). 
