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Zoological Society. 479 
liris transversis clathratis ; albidd, roseo-fuscescente tinctd, granis 
saturatioribus. 
Hab. ? 
PLEvROTOMA REGULARIS. Pleur. testd subpyramidali-ovatd, an- 
Sractibus superne concavis, medio oblique regulariter costatis, aper- 
turd parvd, sinu lato; albidd. 
Hab. ? 
PLevurotoma anercostata. Pleur. testd oblongo-ovatd, spird tur- 
ritd, levigatd, anfractibus longitudinaliter costatis, costis subdi- 
stantibus, angustis, superné angulatis, submucronatis ; nived. 
Hab. ? 
PLevRoToMA mucronata. Pleur. testd acuminato-pyramidali, an- 
Sractibus longitudinaliter subobscure plicato-costatis, costis nodu- 
losis, apertura brevi ; fuscd, nodorum serie mediand albicante. 
Hab. ? “T 
PLEUROTOMA CAGAYANENSIS. Pleur. testd fusiformi-ovatd, spird 
acuminatd, anfractibus superné unicarinatis, infra tuberculato-pli- 
catis, transversim conspicue liratis ; sinu amplo; albd. 
Hab. Cagayan, province of Misamis, island of Mindanao, Philip- 
pines (found in sandy mud at the depth of seven fathoms) ; Cuming. 
PLEUROTOMA TESSELLATA. leur. testd pyramidali, anfractibus 
superne concavis, medio confertim tuberculato-plicatis, aperturd 
parvd ; albd, maculis grandibus conspicuis rufo-fuscis tessellatd. 
Hab. Isle of Capul, Philippines (on the reefs); Cuming. 
PievRoToMA SEMEN. Pleur. testd oblongd, spird mucronatd, an- 
Sfractibus levibus, medio oblique plicatis, aperturd parvd, sinu 
profundo ; castaneo-fuscd, plicis albidis. 
Hab. San Nicolas, island of Zebu, Philippines (under stones at 
low water); Cuming. 
- Pievroroma Paria. Pleur. testd oblongd, spird acuminato-turritd, 
anfractibus superne concavis, infra plicato-costatis, costis angustis, 
subflecuosis ; albd, fascid pallide aurantid indistinctd cingulatd. 
Hab. ? 5 
Pireurotoma scaupra. Pleur. testd pyramidali-ovatd, levigata aut 
minutissime reticulatd, aperturd brevi, sinu distincio ; albd, lineis 
Suscis brevibus tessellatim pictd. 
Hab. ? 
Pievrotoma Forsesii. Pleur. testd turritd, anfractibus rotundatis, 
longitudinaliter obtuse costatis, transversim liratis, aperturd parvd ; 
rufescente-fuscd, liris saturatioribus. 
Hab. Paros, Grecian Archipelago; Forbes. 
I have much pleasure in dedicating this little species to Professor 
Edward Forbes, whose submarine researches among the islands of 
the Grecian Archipelago have afforded matter of so much interest 
and novelty. 
Prevroroma syMMetrica. Pleur. testd ovatd, spird breviusculd, 
anfractibus superne depressis, longitudinaliter costatis, costarum 
