1906,] ON ALCYONAKIAN FROM ZANZIBAR. 393 



spots ; upper part of head and body with irregular spots ; an 

 oblong spot on the lowei- 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 mm. in total length, from Trinidad. 



I believe this must be the species described by Dr. Gill as 

 Ctenogohius fasciatus, although he gives the number of fin-rays as : 

 Dorsal Y, 11; Anal 10. 



40. Chonophorus banana C. &, V. 

 Hah. Tropical America. 



41. EVORTHODUS BREVICEPS Gill. 



Hah. Trinidad; Surinam. 



• EXPLANATION OF THE PLATES. 

 Plate XXI. 



Fig. 1. Tetragonopterus guppyi, p. 38i. 



2. SaplocJiihis Jiarti, p. 389. 



3. Curimatus argenteus, p. 885. 



Plate XXIL 



Fig. 1. Girardiniis giippyi, $ . la. ? , p. 390. 



2. CJiirodou pulcher, p, 385. 



3. Corynopoma riisii, $ . 3 a. ? , p. 382. 



4. Tetragonopterus tceniurus, p. 383. 



5. Tetragonopterus unilineatus, p. 384. 



Plate XXHI. 



JParauchenipterus pasea, p. 387. 



Plate XXIV. 

 'Pseudauchenipterus giippyi, p. 387. 



Plate XXV. 



Fig. 1. Acara pulcJira, p. 392. 



2. Folycentrus scJiomhurghii, p. 391. 



2. The Marine Fauna o£ Zanzibar and British East Africa, 

 front Collections made by Cyril Crossland, M.A., B.Sc, 

 F.Z.8., 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 XXYI.-XXXI.* 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. 



