Zoological Society. 227 
_ »sEyes close together, placed under:the frontal spine; the peduncle 
is much shorter than, and not nearly so thick as, the basal joint of 
inner antenne ; the upper side covered with small spines. 
-> Outer jaw-feet resemble those of Lithodes, especially in L. brevipes. 
\» Abdomen very wide, rounded at the base, triangular at’ the end, 
formed of many plates of different sizes, which are close together ; 
the basal segment is crescent-shaped, and within its sinus are in- 
‘cluded the other plates, which are arranged in four longitudinal series ; 
the outer series narrow, the other three wide; the plates of different 
-sizes and shapes, with two supplemental plates, one on each side of 
the central row, and at its base; the plates with rough and bristly 
‘tubercles ; the first joint of abdomen with two round depressions, the 
base of each being coriaceous-like, and furnished with only a few 
small scattered calcareous tubercles; the middle of the hind-edge 
with four tubercles placed in pairs. 
Hab. North America, mouth of the Columbia River; Sir George 
Simpson. In Mus. Brit. 
8. DescripTioNS OF NEW SPECIES OF TURBO, CHIEFLY FROM THE 
_ -coLLEcrion or Huex Cumine, Esa., F.L.S... By Lovety Reeve, 
F.L.S. 3Tc. 
_-- ‘Turspo NaTALENSIS. Turd. testd vix imperforatd, orbiculari, de- 
- pressiusculd, anfractibus spiraliter sulcatis, sulcis regulariter 
~~ eoncavis latiusculis ; olivaceo-viridescente, rufo radiatim maculatd 
~~ et punctatd, intis argented ; operculo testaceo, cristato. 
- Hab. Port Natal; Wahlberg. 
"The operculum of this beautiful species is a tufted mass, like that 
“of the T. ‘sarmaticus. 
_ Turpo saxosus.. Turb. testd imperforatd, ovatd, spire suturis sub- 
ats _profunde impressis ; anfractibus superné concavo-declivibus, medio 
.. angulatis, transversim obscure liratis, tuberculis jucta suiuras coro- 
4 natis, infra nunc muticis, nunc tuberculis bi-tri-seriatim. armatis, 
_, laminis subtilibus, longitudinaliter obliquis, peculiariter exsculptis ; 
...., viridi albimaculatd, intis argented ; operculo, testaceo, crasso, 
Hab. West Columbia ; Cuming. 
_ Having observed this species in a private collection, under. the 
‘ame sazosus, in manuscript, I adopt it, though not a very appropriate 
‘one, lest it may have been published and escaped my observation. 
The rows of tubercles are extremely variable, being even more pro- 
-minently developed in specimens. of smaller growth than is here re- 
"presented. | 
') ‘Turso taminirerus. Turb. testé umbilicatd, ovatd, spire suturis 
canaliculatis ; anfractibus subtubulosis, spiraliter costatis, costis 
oooh odistantibus, et, cum interstitiis, pulcherrim2 concentric? laminatis, 
aperturd rotundd ; viridi, nigro longitudinaliter undatd, intds ar- 
gented. iq 1 
>) Hab. Mouth of the Victoria river, New Holland. 
>» A-very beautifully sculptured species, allied to the 7. Ticaonicus, 
but perfectly distinguished from it, in being of uniformly smaller size, 
15* 
