a 
1870.] MR. H. ADAMS ON NEW SHELLS FROM THE RED SEA. 789 
spira turrita, apice acuto, rubro; anfr. 9, convexiusculis, ultimo 
antice paulum attenuato ; apertura angusta, dimidiam longitudinem 
@quante ; columella 4 plicata; labro acuto, sulculato. 
Long. 19, lat. 6 mill. 
CorsBULA ERYTHR#ENSIS, H. Ad. (Plate XLVIII. fig. 2.) 
C. testa solida, ovato-triangulari, subequilaterali, valde inequivalvi, 
concentrice conferte costata, costis postice obsoletis ; umbonibus 
submedianis, tumidis ; extremitate antica ovali ; extremitate po- 
stica truncata; margine ventrali subarcuato. 
Long. 84, alt. 74, lat. 5} mill. 
Evcuaris ancurata, H. Ad. (Plate XLVIII. fig. 3.) 
E. testa solida, triangulari-ovata, convexa, valde inequilaterali, 
concentrice rugoso-plicata, alba; umbonibus parvis, ad sextan- 
tem anteriorem sitis; latere antico brevi, subtruncato; latere 
postico acuminato, superne convexo ; margine ventrali arcuato ; 
declivitate umbonali valde carinata. 
Long. 13, alt. 9, lat. 8 mill. 
Newzra (Carpiomya) puLtcHELLA, H. Ad. (Plate XLVIII. 
fig. 4.) 
N. testa ovato-pyriformi, ventricosa, tenui, costis 16-18 radian- 
tibus ornata, anterioribus confertis, posterioribus distantibus ; 
umbonibus medianis, tumidis, approximatis ; extremitate antica 
ovali, postica valde rostrata, rostro paulum reclivi; margine 
dorsali convexo ; margine ventrali arcuato. 
Long 10, alt. 6, lat. 63 mill. 
This species approaches in form to N. gouldiana, Hinds, but is 
more ventricose, and the dorsal margin is convex instead of being 
nearly straight as in that species. It differs from N. singaporensis, 
Hinds, in being more ovate, in the rostrum being less produced, and 
in the radiating ribs being stronger. 
Tevuina (PERONZODERMA) sIMPLEX, H. Ad. (Plate XLVIII. 
fig. 3.) 
T. testa tenui, acuminato-ovali, compressa, subequilaterali, sub 
lente radiatim minutissime striolata, albida; umbonibus subme- 
dianis, parvis, prominulis ; latere antico ovali; latere postico 
subtriangulari ; margine ventrali arcuato; flerura haud con- 
spicua. 
Long. 14, alt. 103, lat. 43 mill. 
TreLLina (PeronmA) puRA, H. Ad. (Plate XLVIII. fig. 6.) 
T. testa tenui, transversa, acuminato-ovata, inequilaterali, concen- 
trice striata, in medio striis obliquis decussata, albida ; umbonibus 
parvis, vie prominulis ; postmedianis ; latere antico ovali ; latere 
postico breviore, subtriangulari; margine ventrali arcuato; flexura 
conspicua. 
Long. 18, alt. 11, lat. 5 mill. 
