found in the Seas of Japan. 207 
2. Neera nobilis, A. Ad. 
N. testa oblonga, ventricosa, albida, antice rotundata, postice valde 
rostrata, concentrice plicata ; plicis salientibus, subconfertis, eequi- 
distantibus, interstitiis concentrice striatis; rostro angulato, re- 
curvato, ad apicem rotundato; margine ventrali arcuato, simplici. 
Lat. 1 une. 7 lin., alt. 1 unc. 
Hab. Mino-Sima; 63 fathoms: Quelpart; 52 fathoms. 
A fine species, most nearly resembling NV. rostrata, Chemn., or 
N. Chinensis, Gray. The outline of the shell, however, is very 
different, the beak being broad and triangular, and the surface 
of the valves concentrically plicate. 
3. Neera Hindsiana, A. Ad. 
N. testa oblonga, ventricosa, albida, antice rotundata, postice ros- 
trata, concentrice lamellata ; lamellis pliciformibus, regularibus, 
subdistantibus, interstitiis concentrice striatis; rostro angulato, 
attenuato, corrugato, recurvato. 
Lat. 10 lin., alt. 5 lin. 
Hab. Gotto; 48 fathoms. 
The form of this species is very similar to N. elegans, Hds. ; 
but the lamellze of the valves are regularly concentric, the shell 
is more elongate at the sides, and the beak is shorter and more 
recurved. 
4. Nea@ra nasuta, A. Ad. 
N. testa oblonga, obliqua, ventricosa, albida, antice rotundata, postice 
longirostrata, concentrice striata, striis confertis irregularibus ; 
rostro elongato, attenuato, deflexo, corrugato; margine ventrali 
valde arcuato. 
Lat. 11 lin., alt. 6 lin. 
Hab. Satanomosaki; 55 fathoms. 
A ventricose oblique species, with the valves concentrically 
striated, and the slender elongate beak bent downwards, giving 
to the shell a very peculiar spoon-like appearance. 
Subgenus Rurnomya, A. Ad. 
Surface of valves lamellar. Hinge with a small triangular 
cartilage-pit and two lateral teeth in right valve. 
1. Rhinomya Philippinensis, Hinds. 
Neera Philippinensis, Hds. Proc. Zool. Soc. 1843, p. 78. 
Hab. Kino-O-Sima; 25 fathoms: Uraga; 21 fathoms. 
2. Rhinomya rugata, A. Ad. 
R. testa oblonga, ventricosula, albida, concentrice confertim lirata ; 
