22 



Akca auADRii.ATEHA. Atcū lesld quxtdrangulari, ventricosd, al- 

 bicante, radialim costatd, epidermtde olivaced indutd ; lateribus 

 supernr angidatis, antico supra rotundato, postico itifra obtus'e 

 angiilnto; costis rotundatis ; ared ligainenii angustd: long. 1', 

 lat. 0-7, alt. 0-85 poli. 



Hab. ad Ueal Liejos. 



Dredged in sandy niud at eight fathonas depth. — G. B. S. 



Arca brevifrons. Arca testd oblongii, radialim costatd, albd, 

 epidermide J'uscd, interstitiorum sctosd, indutd; latere antico 

 brcvi, postico latiore, longiusado ; margine dorsali postice angu- 

 latd ; costis planulatis ; ared ligameiiti obsoletd: long. ViS, lat. 

 0-6, alt. 0-75 poli. 



llah. ad Tumbez, Peruviae, 



Dredged among soft mud at seven fathoms depth. — G. B. S. 



Arca cardiiformis. Arca testd subovali, ventricosd, albidd, ra. 

 diatim costatd, costis anticis rugulosis, cceteris laroibus, interstitiis 

 valvcE majoris angustissitnis, minoris latiusculis ; latere antico 

 rotundato, postico subtits angulato ; margine laterali declivi; 

 ared ligamenti parvd, suba'quali : long. 2", lat. 1-5, alt. I '7 poli, 

 Hab. in Sinu Californiensi. 



Found on tlie sands at San Blas. At Brst glance it has the ap- 

 pearance of, and inight easily be mistaken for, a common Cockle. — 

 G. B. S. 



At the requcst of the Chairman, Mr. Martin read the follosving 

 notes of his dissection of a slender Loris, Loris gracilis, Geoff., which 

 had recently died at the Society's Gardens. It was presented by 

 Captain Faith. 



" The animal was a female, and its admeasuretnents were as 

 follow : 



" Totai length of the body, 85^ inches ; of the arm, 5 (the humerus 

 ineasuring 2, the fore-arm 3 inches) ; of the inferior estiemities, 5i 

 inches (exclusive of the foot; the Jemur bcing 2i, and the leg 3 

 inches long). 



" On laying open the abdomen, the liver, the stomach, a portion 

 of spleen^ and the convolutionsof the small intestines were presented 

 to vievv. The liver was tripartite ; the left lobe was single ; the 

 middle lobe divided into two portions, on the right of which, in a 

 sulcus, on the under or convex side, was situated the gall-bladder ; 

 and the right lobe was alsO divided, the tobulus Spigelii existing as 

 usual. The spleen was of a dark colour, long and narrovv, being 

 barely half an inch broad, but 2 inches in length, and attached pretty 

 closely to the convex portion of the cardiinn. The gall-bladder 

 was oval, itsduct enteringhalfan inch below the pi/lorus; the length 

 of the duct was nearly half an inch. The pancreatic duct termi- 

 iiated with it, that gland being long and slender, running an inch and 

 a half along the curve of the duodenum, to which, beginning at the 

 pt/lorus, it Mas closely attached. 



