146 Zoological Society. 



seen on the savannahs and in the courida bushes, and are strictly 

 nocturnal. 



It will be perceived that I have not described the Harpya de- 

 structor. This is in consequence of my not having had an oppor- 

 tunity of examining a dead specimen ; a living specimen which I have 

 access to, in the possession of Governor Barkly, being altogether too 

 fierce to take liberties with. It has a very owlish appearance, both 

 in its facial disk and soft plumage. I have seen another imperfect 

 skin of a very large Eagle feathered to the toes, with tremendous 

 talons ; both this and the Harpy I hope to be able to describe in a 

 subsequent communication. 



March 11, 1851.— J. E. Gray, Esq., F.R.S., in the Chair. 



Description of new species of Emarginula in the Collec- 

 tion OF H. Cuming, Esa. By Arthur Adams, R.N., 



F.L.S. ETC. 



Genus Emarginula, Lamarck. 



Head proboscidiform ; tentacles subulate, with the eyes on tuber- 

 cles at their external bases ; foot with a range of cirrhi round the 

 sides ; mantle-margin simple ; branchial plumes two ; anal siphon 

 with its angulated membranous sides projecting from the edges of the 

 fissure ; tongue with a central laminar subquadrate tooth and nume- 

 rous lateral teeth. 



Shell conical, with an elevated slightly recurved entire vertex turned 

 towards the posterior end ; surface cancellated ; aperture emarginated 

 in front by a slit, which runs for some distance up the shell ; interior 

 without a partition ; muscular impression crescentic, interrupted in 

 front. 



Emarginulus, Montf. — Patella, sp. Linn. 



1 . Emarginula clypeus, A. Adams. E. testd elongato-ellip- 

 tied, valdh depressd, testaced, maculd luteold in medio dorsi, ver- 

 tice subcentrali, posticb inclinato ; costis confertis, cequalibus, 

 radiantibus, imbricato-asperis, ornatd ; basi arcuato ; aperturce 

 margine crenulato, antice valdk fissurato ; Jissurd magnd ; aper- 

 turd intus bimaculosd. 



Hab. Isle of Burias, Philippines, on dead shells, 7 fathoms, sandy 

 mud. Mus. Cuming. 



2. Emarginula scabriuscula, A. Adams. E. testd elongato- 

 ellipticd, depresso-conicd, testaced, vertice subpostico, retror- 

 sum inclinato; costis incequalibus, radiantibus, imbricato-sub- 

 aculeatis, asperis, et litieis elevatis, concentricis, cancellatd ; 

 aperturd antic^ angustatd, basi arcuatd, margine creno-denti- 

 culato. 



Hab. ? Mus. Cuming. 



3. Emarginula obovata, A. Adams. E. testd elongatd, ob- 

 ovatd, depresso-conicd, testaced, vertice subcentrali, retrorsum 

 inclinato, costellis radiantibus, imbricato-asperis, et liris ele- 



