74 



BuLiNUS Jacobi. Bul. testd ob'.ongd, te>mi,Juscd, nonnuncuam 

 albido hil'meatd; anfradibus sex, ventricosis, minutissime 

 granosis, granulis seriatis ; sutiird profunde impressd ; aperturd 

 ovatd, pe7-itremate tenui, labio interno partim supra umbilicum 

 magnum expanso ; long. 0'55, lat. 0*3 poli. 



Hab. ad Insulam Jacobi, inter Gallapngos. 



Found under scoriae. — G. B, S. 



BuLiNUS scABiosus. Biil. tcstd oUongo-pi/ramidali, hrunned, 

 apice saturatiore, albido guttatd et maculatd ; anfradibus sep- 

 tem subventricosis, suturd Icviter impressd į aperturd subovali, 

 peritremate tenui ; umbilico parvo. 



Hab. ad Cobijam sub lapidibus. 



This species resembles Bul. pupiformis ; it is, hovvever, niuch 

 smaller and difFerently proportioned. — G. B. S. 



Specimens were also exhibited from the šame collection of two 

 species of Cirripedes, appareiuly hitherto undescribed. They vvere 

 characterized by Mr. G. B. Sowerby as foUovvs: 



PoLLiciPES RUBER. Poll. testd trregularitev subtrigond, rubrd, an- 

 tice subtiisgue pallidiore ; valvis superioribus majoribus, planu- 

 latis, subtrapezifhrmibus , superne acuminatis ; dorsali magno, 

 sagittato, dorso rotundato-carinato ; pedunculo sguamulis mi- 

 nimis obtecto. 

 Hab. apud Inner Lobos Island, ad littora Peruviae. 

 This species is generally from 2 to 3 inclies long ; it is remark- 

 able for the form and colour of the upper pair of valves and the 

 dorsai valve. The interstices of the valves also are of a deep blood- 

 red colour. — G. B. S. 



PoLLiciPES POLYMERUS. Poll. testd oUusi subtvigona ; valvis 

 Icevibus, substriatis, superioribus quatuor majoribus convexis, 

 subtrapeziformibus, apice postice acuminato, basi subtruncato, 

 reliquis plurimis plerumque subtrigonis ; jiedunculo sguamulis 

 minimis resupinatis obtecto. 

 Hab. ad oras Californiae. 



The remarkable characters of this species are, the great number 

 of small valves, and the minute scaies of the peduncle being all 

 placed vvith their apices downwards. — G. B. S. 



Preparations were exhibited of the stomach and Cčecum of two 

 S'pecies oi Semnopithecus, F. Cuv., Semnn. Entellus and Jascicularis. 

 They were obtained from individuals vvhich recentJy died in the 

 Society's Gardens. 



Mr. Owen calied the attention of the Society to these prepara- 

 tions in iilustration of a Paper which he read " On the Sacculated 

 Form of the Stomach in the Monkeys of the Genus Semnopithecus , 

 F. Cuv." He referred to M. Otto as the first observer of this 

 peculiar structure among the Monheys, that eminent anatomist 

 having described and figured it in the ' Nova Actą Academiae 

 Csesareae' (tom. xii. p. 511.)> as it exists in a species to which he 

 gavę the name of kucoprymma, placing it doubtingly among the 



