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laribus ; apertura ovali, columella reflexa, subexplanata, canali 
brevi subrecurvo, labro acuto margine irregulari. 
Hab. Gulf of California. 
8. SrytireR ExARATUS, A. Adams. 
S. testa subulato-turrita alba nitida semipellucida, anfractibus per- 
multis convexiusculis transversim sulcatis longitudinaliter creber- 
rime striatis, suturis impressis ; apice mucronato ; apertura ovata 
ad basim subeffusa; labro sinuoso, margine incrassato et sub- 
reflexo. 
Hab. Parasitic in the skins of Starfishes. Philippine Islands. 
(Mr. Cuming.) 
In this species of Starfish Parasite the whorls of the large turreted 
wax-like shell are distinctly marked with transverse grooves, and 
the outer lip is thickened at the edge and a little reflexed. 
9. STYLIFER SUBANGULATUS, A. Adams. 
S. testa subulato-turrita alba nitida semipellucida, apice mucronato 
flexuoso, anfractibus permultis convexiusculis, lineis elevatis trans- 
versis cinctis, ultimo ad peripheriam subangulato ; apertura obpy- 
riformi, labro tenui sinuoso in medio producto. 
Hab. West Indies. 
Perhaps the nearest approach in form to this Stylifer is 8. coral- 
linus of Chemnitz, which was also obtained from the West Indies ; 
but as there is an example in Mr. Cuming’s Collection agreeing 
almost exactly with the figure in Chemnitz, and yet of a different 
species, I have named the present one S. subangulatus from the an- 
gular character of the last whorl. 
10. ADMETE BOREALIS, A. Adams. 
A, testa ovato-oblonga albida epidermide fusco corneo induta, an- 
Sractibus sex, convexis, supremis obscure longitudinaliter plicatis, 
ultimo ventricoso transversim sulcato sulcis subdistantibus suturis 
impressis ; apertura ovali labio tenui expanso, columella arcuata 
simplice antice subtruncata, labro margine acuto intus simplice. 
Hab. Melville Island. 
This appears to be a well-marked species of the northern form of 
Cancellariide ; the shell is much larger than Admete viridula, and 
the columella is entirely without plaits. 
11. Macrocuisma sinensis, A. Adams. 
M. testa elongato-ovali compressa, antice rotundata et angustiori 
postice sinuata et latiori, ad extremitates elevatis, lineis elevatis 
radiantibus et concentricis decussatim ornata, albida fasciis car- 
neis et punctis fuscis radiatim picta; foramine postico lanceolato 
elongato. 
Hab. China Seas. 
12. MArRGINELLA GemMMA, A. Adams. 
M. testa ovato-fusiformi, spira producta, acuminata, alba, fasciis 
duabus latis transversis, maculis viridescentibus tessellatis et lineis 
