8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



Palawan Id., Philippine Ids. (Kemp, 1915; Roxas and Estampador, 

 1930). The habitat and depth range have not been recorded. 



In compiling the synonymy of G. hendersoni, new species, I have 

 assumed that all records from southern India and the western Indian 

 Ocean should be referred to G. demanii. 



Gonodactylus demanii Henderson, 1893 



Figure 3 



Gonodactylus Demanii Henderson, 1893, p. 455, pi. 40 (figs. 23-24). — Thurston, 



1895, p. 120. 

 Gonodactylus spinosus. — Lenz, 1905, p. 387, pi. 47 (fig. 12). 

 Gonodactylus Demani. — Nobili, 1905, p. 11. — Parisi, 1940, pp. 4, 6. 

 Gonodactylus de Mani. — Nobili, 1906, p. 158. 

 Gonodactylus De Mani. — Nobili, 1906a, p. 330. — Lenz, 1910, p. 572. — Maccagno, 



1936, p. 179.— Dollfus, 1938, p. 213, fig. 16. 

 Gonodactylus demani. — Borradaile, 1907, pp. 210 [key], 212. — Kemp, 1913, pp. 



164, 198, pi. 9 (figs. 10S-111).— Tattersall, 1921, p. 359.— Kemp and Chopra, 



1921, pp. 297, 309.— Gravely, 1927, p. 151.— Gravier, 1935, p. 360, fig. 3?.— 



Ramadam, 1936, p. 8. — Taramelli, 1955, pp. 44, 47. 

 Gonodactylus demanii. — Holthuis, 1941, p. 282, fig. 8a [part]. — Stella, 1955, p. 



69. — Dollfus, 1959, p. 242 [part; discussion]. 

 Gonodactylus demani demani. — Ingle, 1963, p. 27 [part]. 



Material.— Id", 20.9; 19, 18.6; Dorom Id., Dahlak, Red Sea; 

 A. Ben Tuvia; Sta. E57/522; Dec. 27, 1957; exchange from BMNH; 

 USNM 120471. lc\ 23.8; 19, 30.1; Tor and Ain Musa, Gulf of 

 Suez; R. B. S. Sewell; exchange from BMNH; USNM 120472. 19, 

 21.5; western end of Astola Id., ca, 177 mi. west of Karachi, West 

 Pakistan; 0-8 ft., in rocks, sand, scanty, scattered coral; Sta. LW-1; 

 L. P. Woods, et al; IIOE; Nov. 27, 1963; USNM 120473. 1 young 

 9, ca. 10.0; % mi. northeast of Hare Id., Gulf of Mannar, S. India; 

 from dead coral, 1.5-3 ft.; Sta. GA-64-13a; J. S. Garth; IIOE; 

 Feb. 22, 1964; USNM 120470. 



Description. — Basal portion of rostral plate with anterior margins 

 almost transverse; anterolateral angles subacute but rounded. 



Ocular scales small, low, rounded or subtruncate. 



Lateral processes of sixth and seventh thoracic somites rounded or 

 subtruncate, subequal in size or that of seventh somite slightly larger. 



Mandibular palp and 5 epipods present. 



Sixth abdominal somite with 6 swollen carinae, each usually armed 

 with apical spinule, spinules obsolete in larger specimens. 



Telson broader than long, with 3 pairs of marginal teeth, submedians 

 with movable apices, intermediates and laterals with sharp apices; 

 dorsal surface of telson with spinules; submedian anterior prominences 

 on telson often tuberculate; median carina moderately or very inflated, 

 with 1-3 posterior tubercles; posterolateral margin of median carina 



