230 Zoological Society. 



character, and very different from any of the tropical species of the 

 genus. 



Turbo militaris. Turb. testd ovatd, imperforatd, tenuiculd, sub- 

 ventricosd, anfractibus IcEvibus, superne decUvibus ; rufescente 

 albidd, maculis lineisque rufis nitide pictd ; columella margine 

 livido-cinereo, intus argenteo. 



Hab. Isle of Annaa (on the reefs) ; Cuming. 



An interesting species of rather light growth, exhibiting a very 

 distinct and characteristic style of painting. 



Turbo histrio. Turb, testd subglobosd, tumidd, imperforatd, spirts 

 suturis excavato-cunaliculatis , spiraliter liratis, liris subtilissime 

 lamini/eris, squamatis, squamisfortibus, erectis ; nived, aurantio- 

 ferrugineo late radiatd, intus argented. 



Hab. ? 



A shell of ventricose gi'owth, strongly scaled, whilst the entire 

 surface is very minutely laminated. 



Turbo fluctuatus. Turb. testd transverse ovatd, crassiusculd, 

 subventricosd, imperforatd ; anfractibus Icevibus, superne rude an- 

 gulatis, ad angulum obsolete nodosis, infra liris plano-obtvsis, hie 

 illic fere evanidis cingulatis ; columelld concavd ; oUvaced, lineis 

 niveis viridi-umbratis, acute undatis conspicue longitudinaliter 

 pictd, itttus argented; operculo testaceo, spiraliter sulcato, medio 

 subtilissime granulosa, marginem versus multiserrato. 

 Hab. Punta, St. Elena, West Columbia ; Cuming. 

 An extremely interesting species, which, though of rare occurrence, 

 has long been known to me by the above name : from whom it re- 

 ceived that appellation, which is very characteristic, I cannot, how- 

 ever, learn. It is a shell of solid growth, somewhat rudely noduled, 

 and obscurely flatly ridged. The ground-colour is that of a livid 

 olive, very conspicuously marked with numerous zigzag lightning-like 

 streaks of bright body- white, shaded with dark green. 



The operculum is remarkable : testaceous and strongly spirally 

 grooved, the innermost groove is broadly excavated, and the central 

 mass is solid and minutely granulated, whilst the portion without the 

 broad groove is arranged in numerous concentric, finely- serrated 

 laminae. 



April 11. — William Yarrell, Esq., Vice-President, in the Chair. 



The following paper was read to the meeting : — 



Supplementary Note on the Great Chimpanzee (Troglodytes 

 Gorilla, Savage, Trogl. Savagei, Otven). By Professor 

 Owen, F.R.S. etc. 



Since the communication of my description of the skulls of the 

 great Chimpanzee of the Gaboon district, I have received from an 

 esteemed correspondent. Dr. Wyman, Professor of Anatomy in Har- 

 vard University, United States, and a most accomplished anatomist 

 and physiologist, a copy of his description of the parts of the skeleton 

 of the great Chimpanzee which Dr. Savage had taken with him on 



