collected in Japanese Seas. 417 
species to Commander H. C. St. John, by whom it was dis- 
covered. The subconvex simple whorls, clothed with a smooth, 
thickish, olive epidermis, the wide sinuation of the lip, and 
the broad oblique canal are the principal characteristics. 
12. Pleurotoma (Drillia) flavidula, Lamk. ; Con. Icon. 1, Pleu- 
rotoma, f. 66; Kiener, Coq. Viv. Pleurotoma, pl. vi. f. 2. 
Hab. North of Niphon, 43 fathoms, sand and mud; west of 
Niphon, 3 fathoms, soft mud; Goza Harbour, 6 fathoms, sand 
and mud. 
13. Drillia Jeffreysii, sp. nov. 
Testa fusiformis, subturrita, luteo-albida, purpureo-fusco maculata et 
punctata ; anfract. 13 superne concavi, inferne convexi, costis 
obliquis infra excavationem (in anfr. ultimo 14-15 ad peripheriam 
obsoletis) instructi, transversim ubique striati et graciliter lirati, 
liris 2-8 supra costas albidis, subnodosis, incrementique lineis 
flexuosis ornati; apertura intus fuscescens, purpureo tincta, lon- 
gitudinis teste haud 2 equans; labrum medio extans, superne 
valde profundeque sinuatum ; canalis latus, brevis. 
Long. 37 mill., diam. 11. 
Hab. Goza Harbour, 8-43 fathoms. 
The nearest allied species to the present one 1s flavidula, 
Lamarck, from which it differs in having a shorter aperture, a 
broader canal, and distinct spiral striation in the concavity 
which occupies nearly the upper half of the whorls. 
14, Pleurotoma (Drillia) chocolata, sp. nov. 
Testa fusiformis, nitens, saturate purpureo-fusca, zonis angustis 
tribus modo supra costas parentibus ornata; anfr. 12, primi 2-3 
conyexi, leves, ceeteri superne concayi, deinde convexiusculi, infra 
excavationem costis rotundatis paucis (in anfr. ultimo 9 ad peri- 
pheriam obsoletis) instructi, striis exilibus paucis spiralibus, sed 
haud in concavitate, insculpti; anfr. ultimus infra peripheriam 
valde angustatus, ubique transversim striatus vel liratus ; apertura 
intus purpureo-fusca, longitudinis testa ad 2 equans; labrum 
tenue, medio extans; sinus mediocriter profundus; canalis obli- 
quus, recurvus. 
Long. 21 mill., diam. 7. 
Hab. Goza Harbour, 6 fathoms. 
The dark chocolate colour, with the three yellowish spots 
(which are slightly nodulous) on each rib, and the smooth con- 
cavity at the upper part of the whorls are very distinctive 
characters. 
15. Pleurotoma ( ?) inconstans, sp. nov. 
Testa oblonga, turrita, purpureo-fusca, cirea anfractuum medium 
