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Show 1906.] ON ALCYONARIAN FROM ZANZIBAR. 303 spots; upper part of head and body with irregular spots; an oblong spot on the lower part of cheek and a triangular spot on the operculum ; a series of 3 or 4 linear spots along the middle of the side ; a spot at the base of caudal; series of small spots on the dorsal and caudal fins. Four specimens, 70 m m . in total length, from Trinidad. I believe this must be the species described by Dr. Gill as Ctenogobius fasciatus, although he gives the number of fin-rays as : Dorsal V, 11 ; Anal 10. 40. CHOXOPHORUS BAXAXA C. & V. Hab. Tropical America. 41. EVORTHODUS BREVICEPS Gill. Hab. Trinidad; Surinam. EXPLANATION OF THE PLATES. PLATE XXI. Fig. 1. Tetragonopterus guppyi, p. 384. 2. JTaplochilus harti, p. 389. 3. Curimatus argenteus, p. 385. PLATE XXII. Fig. 1. Girardinus guppyi, $. la. $ , p. 300. 2. Chirodon pulcher, p, 385. 3. Corynopoma riisii, <$. 3 a. ? , p. 382. 4. Tetragonopterus tceniurus, p. 383. 5. Tetragonopterus unilineatus, p. 381. PLATE XXIII. Parauchenipterus pasece, p. 387. PLATE XXIV. Pseudaucheyiipterus guppyi, p. 387. PLATE XXV. Fig. 1. Acara pulchra, p. 392. 2. Polycentrus schomburgJcii, p. 391. 2. The Marine Fauna of Zanzibar and British East Africa, from Collections made by Cyril Crossland, M.A., B.Sc, F.Z.S., in the Years 1901 and 1902.-Alcyonaria. By Prof. J. ARTHUR THOMSON, M.A..University of Aberdeen, and W. D. HENDERSON, M.A., B.Sc, Carnegie Fellow, University of Aberdeen. (Plates XXVI.-XXXL* and Text-figure 85.) This report deals with the Alcyonarians in the rich collection of marine animals made by Mr. Cyril Crossland at Zanzibar in 1901-2. The Alcyonarians are mostly littoral forms, e. g. species * For explanation of the Plates, see p. 442. |