——— 
SS 
OS 
EEE 
227 
2. Rimuta Cuminen, A. Adams. R. testd pared, ovatd, opacd, 
costellis longitudinalibus, radiantibus, lineisque transversis, cras- 
818, concentricis, cancellatd 3 cancelli transversi, elongati ; costis 
nodulosis, subequalibus, prominentibus, distantibus, anteriori- 
bus duabus antice divergentibus, interstitiis costellis duabus in- 
structis, perforatione elongatd, subquadratda. 
Hab. Eastern Seas. Mus. Cuming. 
3. Rimuta cartnata, A. Adams. R. testd parvé, ovali, costel- 
hs simplicibus, permultis, confertis, longitudinalibus, radianti- 
bus, ornatd ; interstitiis cancellatis 3 cancelli punctiformes ; cos- 
tellis duabus anterioribus, antice convergentibus, et apud aper- 
ture marginem junctis ; interstitiis, supra perforationem, con- 
vexis, supra verticem extendentibus, quasi carind ; perforatione 
ovali, angustd, antice angustaté. 
Hab. Cagayan, province of Misamis, island of Mindanao, on dead 
shells, 25 fathoms, sandy mud (H. C.). Mus. Cuming. 
4. Rimuta PRoPINquA, A. Adams. R. f¢estd pared, elongato- 
ovali ; costellis prominentibus, asperis, longitudinalibus, ra- 
diantibus, subdistantibus ; interstitiis valde cancellatis ; can- 
celli transversi, subquadrati; costellis duabus anterioribus, 
antice convergentibus, ad aperture marginem junctis ; perfo- 
ratione angustato-ovali, antice acuminata. 
Hab. Catapan, Philippines. Mus. Cuming. 
9. A Monocrapu oF PUNCTURELLA, A GENUS OF GASTEROPODOUS 
MOoLLUuscA, BELONGING TO THE FAMILY FissuRELLID2. 
By Arruur Apams, R.N., F.L.S. erc. 
Genus Puncrure.ta, Lowe. 
Head proboscidiform, tentacles subulate, with the eyes on swell- 
ings at their outer base; sides with a range of cirrhi, interrupted be- 
hind on each side; mantle-margin simple ; branchial plumes two; 
anal siphon prominent, forming a truncated membranous canal pro- 
jecting from the subapical perforation. 
Shell conical, with an elevated, slightly recurved, obliquely spiral 
entire vertex, turned towards the posterior end ; aperture expanded, 
oval; surface with radiating ribs ; margin entire; a linear perfora- 
tion in the upper part of the shell, between the vertex and front 
margin, in the line of an elevated rib. Interior with a linear groove, 
vaulted over with a shelly plate corresponding to the perforation ; 
muscular impression crescentic, interrupted in front. 
Cemoria, Leach, MSS.—Sipho, Brown.—Rimula, Lovén ; Gould ; 
Couthouy.—? Diadora, Gray. 
1. Puncrurenia Noacuina, Linneus. 
Patella noachina, Linn. Mantissa, p- 551; Chemn. Conch. Cab. 
vol. xi. p. 186. pl. 197. f. 1927, 1928.— Patella fissurella, Miiller,— 
