Boone, Crustacea, Cruise of "Alva," 1931 215 



telson, strong, the inner blade ovate, as long as the telson; the 

 outer blade is a little longer with its outer lateral margin nearly 

 straight, the inner lateral and distal margins rounded, convex. 

 Both blades are setose. 



Legs: The legs are all prehensile, the first three pairs being 

 directed forward, the remaining four pairs posteriorly; all the 

 dactyli are hook-like. There are no spines on any joints of the legs. 



References: Anilocra leptosoma, Bleeker, Verhandel. Natu- 

 urk. Ver. Nederlandisch. Indie, vol. II, 1857, no. 5, p. 30, t. I, 

 figs. 6a-b. — SCHIODTE and Meinert, Naturhist. Tidsskrift., 

 R. Bd. XIII, 1881-83, p. 108, pi. 8, figs. 2, 3, 4.— NiERSTRASZ, 

 H. F., "Siboga"-Expeditie III Isopoda Genuina II Flabellifera 

 Monogr. 32C, 1931, p. 129. 



Anilocra alloceraea, Koelbel, Neu. Cym., Bd. II, p. 7, figs. la-c. 



Genus: CYMOTHOA Fabricius 

 Cymothoa eremita (Bruennich) 



Plate 63 



Type: The type is deposited in the Copenhagen Museum 

 (original description not available to the present writer) . 



Distribution: This species has been repeatedly recorded 

 from the Indo-Pacific, where it has been taken parasitic on sev- 

 eral different species of fishes at Madras, Pulo Penang, Singa- 

 pore, Java, Bangka, Mabutua, Menado, Bohol, Marineles Ubay, 

 Legaspi, Japan and the Society Islands. 



Material examined : One large specimen, taken at Sourabaya, 

 Java, Dutch East Indies, October 28, 1931. 



Technical description: Head: This is subpentagonal, with 

 the frontal part truncated, rounded and obscurely emarginate; 

 the greatest width across the posterior region is equal to one and 

 a third times the greatest length. The eyes are smallish, situated 

 in the postlateral angles of the head. The head is deeply immersed 

 in the first thoracic segment, having the posterior three-fifths sur- 

 rounded by the produced angles of the first thoracic segment. The 

 first pair of antennae are thick, stocky, composed of eight ar- 

 ticles, when extended they are not quite as long as the anterior 

 margin of the first thoracic segment. The three peduncular ar- 

 ticles are subequal in length ; the first article compressed proxi- 



