322 
bonibus disparibus ; dentibus cardinalibus tribus, in equalibus, 
lateralibus prelongis, striatis. 
Long. =, lat. 74, diam. 35, poll. 
Hab. Deccan, India. 
16. CorBICULA TENUISTRIATA, Prime. OC. testa trigona, equi- 
laterali, alta, tumidula, levissima ; epidermide flavescente ni- 
tidissima, transversim regulariter striata; intus alba ; umbo- 
nibus prominentibus erosis ; cardine angusto, tridentato ; den- 
tibus lateralibus angustissimis, elongatis, tenuissime serrulatis. 
Long. {5 lat. 38, diam. 345, poll. 
Hab. ? 
17. SpH#RIUM INCONSPICUUM, Prime. S. testa ovato-subrhom- 
boidea, compressa, levi, fragili, subinequilaterali, epidermide 
nitida lutescente vestita, transversim tenuiter et levissime 
striata; umbonibus parvis, tumidis ; dentibus cardinalibus mi- 
nimis, lateralibus elongatis. 
Long. 74, lat. ;3,, diam. +), poll. 
Hab. Lycia. 
18. SPHH% RIUM SUBTRANSVERSUM, Prime. S. testa ovato-ob- 
longa, equilaterali, tenui, fragili, parva, compressa, epidermide 
flavescente vestita, umbonibus magnis haud tumidis. 
Long. ;3,, lat. +25, diam. 45, poll. 
Hab, Tobasco. 
19. Pistprum RETUSUM, Prime. P. testa minuta, ovato-sub- 
rhomboidea, complanata, inequilaterali, tumida, postice rotun- 
data, tenuiter striata, epidermide corneo-flavescente vestita ; 
umbonibus tumidis. 
Hab. Honduras. 
20. Pistp1um ANGULATUM, Prime. P. testa minuta, elongata, 
ovato-orbiculari, inequilaterali postice subtruncata, epidermide 
corneo-flavescente vestita, tenuissime striata, umbonibus parvis, 
tumidis. 
Hab. Valparaiso. 
June 26th, 1860. 
Mr. E. W. H. Holdsworth, in the Chair. 
Mr. Leadbeater exhibited some heads of the American Wapiti Stag 
(Cervus canadensis) of which the antlers were of remarkable size and 
strength—one of the heads weighing over 32 lbs., and three speci- 
mens of Buffon’s Skua (Lestris cepphus), in fine plumage, lately ob- 
tained on the coast of Ireland. 
