Boone, Echinoidea, Cruise of "Alva," 1931 253 



References: Echinus calamaris, Pallas, P,, Spic. Zool., 1774, 

 vol. I, f asc. X, p. 31. 



Echinothrix calamaris, Agassiz, A., Rev. Echini, pt. I, 1873, p. 

 119 (Reviews early literature). — de Meijere, J. C. H., 

 Echinoidea "Siboga"-Expeditie, Monogr., 1904, p. 51 (Gives 

 recent literature list) .— Mortensen, Th., K. Danske Vid- 

 ensk. Selsk. Skrif t. Nat.-Math. 7 E R 1, 1904, p. 30, pi. 3, figs. 

 5, 13, 17, 30; pi. 4, fig. 7; pi. 5, figs. 3 and 11.— Agassiz, A., 

 and Clark, H. L., Mem. Mus. Comp. Zool., vol. 34, no. 2, 

 1908, p. 117. 



Suborder: Camarodonta 

 Family: TEMNOPLEURIDAE 



Genus: TEMNOPLEURUS Agassiz 

 Temnopleurus toreumaticus Klein 



Plates 87 and 88 



Type : The original record of this species was not available to 

 the writer. 



Distribution: This species is widely distributed and some- 

 what unusually so, being known from the Arabian coast of the 

 Red Sea (Koehler), eastward in the Persian Gulf, the Maldive 

 Archipelago, Ceylon, China and southern Japan, at Kobe and 

 Yokohama, the East Indies, the Arafura Sea, the Aru Islands 

 (Doderlein) ; Prince of Wales Channel, Torres Straits ; probably 

 south to Queensland (Clark, 1912) ; Gulf of Siam, several locali- 

 ties (Mortensen) ; Durian Straits (Boone). 



Material examined: One small specimen, from 15 fms., Du- 

 rian Straits, south entrance, to the southward of South Brother's 

 Island, near the Equator, Lat. 0* 29' N. by E., Long. 104° 47' E.. 

 October 22, 1931. 



Discussion : The single specimen of this species, taken by 

 the "Alva" in Durian Straits, is about one-half of the size shown 

 in plate 87, and conforms in all essentials to the excellent de- 

 scription of the species given by Agassiz (1872) and Doderlein 

 (1885), as augmented by the much needed thorough analysis of 

 the pedicellariae done by Mortensen (1900). The little urchin is 

 exquisitely colored, even in the preserved specimen, the test being 

 a rich wine-purple, and the primaries, both abactinal and actinal, 



