70 DR. A. GUNTHER ON THE ZOOLOGICAL [ Feb. 6, 
4. Raizocuitus (CORALLIOPHILA) PARVUS, sp. nov. (Plate 
XI. fig. 6.) 
Testa parva, fusiformi-ovata, vir rimata, alba; anfractus circiter 
7, convexiusculi, longitudinaliter plicati, plicis obliquis 10-11 
validis, et liris spiralibus rugosis fortibus (in anfr. penult. 5-6, 
in ultimo circa 18, alternatim majoribus) cincti; apertura 
ceruleo-alba, pyriformis, ad basim canalem brevem aliquanto 
recurvum jungens, longitudinis totius 3 paulo superans ; labrum 
crenulatum, intus denticulatum. 
Longit. 103 millim., diam. fere 6. 
This pretty species is of a short fusiformly-ovate shape, entirely 
white ; the whorls are spirally lirated, two of the lirations on the 
upper whorls being stouter than the others ; and those on the last 
are regularly alternately large and small, the stout ones being twice 
as thick as the latter. The aperture is bluish white, pyriform, and 
prolonged into the basal channel, which is somewhat recurved ; the 
columella is straightish, thinly callous, smooth and shining; the 
labrum is strongly crenulated on the margin and armed within with 
about ten lirations, which do not extend far within the aperture. 
Although there are not any very striking peculiarities in this 
little shell, still it does not satisfactorily agree with any other species. 
For its size the spiral ribs are remarkably stout, and are more con- 
spicuous than the oblique plications. 
5. COLUMBELLA FUSCATA, Sowerby. 
Panama, Mazatlan, West Columbia, and Peru are other localities 
where this species has been found. 
6. Lavirus varicosus, Reeve. 
It is curious that the single specimen obtained by Commander 
Cookson is in exactly the same worn condition as the shells origi- 
nally described. 
7. LaTirvus TUBERCULATUS, Broderip. 
Also found on the west coast of Central America. 
8. Mirra (STIGATELLA) TRISTIS, Swainson. 
This species is also quoted from Mazatlan, Panama, and St. Elena, 
West Columbia. 
9. Corus nux, Broderip. 
10. Crrira1um MAcuLosuM, Kiener. 
11. CaALypTR@A, sp. 
There are two small specimens of a species of this genus in the 
collection, probably the young stage of C. tortilis, Reeve, or C. al- 
veolata, A. Adams, both of which are described as inhabitants of 
these islands. One of them has taken up its abode in the shell of a 
dead Fissuredla, and has curiously extended the margin of its shell 
through the apical hole. 
