ihi nttc I ishta from PortiKjuefe Guinea. 421) 



Tlie pelvis (fi;;. (J) is very Urcre, tli« total len^tli in tlio 

 mid-ventral line bein;; 120 cm. The puijis is a ^reut pluteof 

 very thin bone, and the ischium, as in the other IMiosaurs, is 

 much elon;:jiited. The femur, like tlu! humcirus, is fully 

 ossified, niul bears sfron;; rid^^es ft)r nuHcle attachment. The 

 tibia and fibula are much like the ra<lius and ulna. 



This skeleton will be completely describetl and fi;;ured in 

 the * C'atalo;;ue ot the Marine Keptilea of the Oxford Ulay.' 



Some dimensions in centimetres of the type specimen of 

 SimoUstea vorax : — 



Skull : 



Lon^^'th from occipital coiidylo to tip of snout . . I'Mi 



Wiiitli bolwecu outer unjs of (juadrutud 510 



Mojuliblo : 



LeiiKtli S)7() 



,, of symphysis 17"'J 



Middle cervicid viTti-bm: 



Lon^th of centrum '6 '2 



Width „ 7-9 



IKib'tit „ 79 



„ to top of neural spiue 210 



Humerus: 



Lenp-th 430 



Width of distal expansion 2l"8 



Coracoid : 



Greatest leng^th 710 



Width at narrowe!>t 32() 



„ between <:Ienoid cavities (aa mounted). . tioO 



Ilium : length 310 



Pubis : 



I.enpth GO-0 



Width 48-0 



Ischium : 



Ctreatest lenpth 010 



Width at (rlenoid cavity 320 



Femur : 



I^npth 500 



Width of distal cx^Hinsion 27'5 



XLVITI. — Descriptions of Three new Fishes from Portuguese 

 Guinea. By G. A. 13ouLEN(Ji:i{, F.K.S. 



Du. W. J. An>OIIGK, to whom African ichthyology is in- 

 debted for so many discoveries made during the past ton 

 years, had occasion during a recent short visit to Portu;;uesc 

 riiiiiua to procure a few fishes which arc of considi rable 



