* 
- 
E Zoology. 191 
G. 3. Varpivia, WhAite.*—Articulus maxillipedis externi 9dus 
brevior quam latior, 3tius longior quam latior. 
G. 4. Porauia, Latr.—Articulus maxillipedis externi 3tius apice 
subtriangulatus anguloque apicali 4tum gerens.  Palatum colli- 
culo utrinque bene partitum. 
An hic pertinet genus Galene Haanii ?t 
Lzc1o III. CYCLINEA, vez; CANCROIDEA CORYS'TIDICA. 
Pedibus maxillipedeque 1mo Caxczipis affinis. — Palatum colliculo 
utrinque non divisum. Antennz externa; obsolete. ^Carapax angustus, 
suborbieulatus. Branchie numero septem. 
G. l1. AcaxTHOCYCLUS, Lucas.i—Carapax orbiculatus. Pedes lon- 
gitudine mediocres, tarso uncinato. 
G. 2. Convsrorpss, Lucas.&—Carapax oblongus, ellipticus. Pe- 
des longiores, tarso styliformi, longo. Antennz internz fossis 
carentes. 
2. Additional note to the Remarks om the Classification of the 
Maioidea: by JAmEs D. Danua.||— The following genus by Kroyerf] 
should be added to the synopsis given in the last number of this Journal. 
It appears to belong to the subfamily Inachine, and is classed near 
Inachus by its author. "The species on which the genus is founded is the 
Cancer phalangium of Fabricius, Faun. Groenl. n. 214, and his Cancer 
Opilio in Det danske Vid. Selsk. Skr. nye Saml. iii, 180. It is from 
Greenland.  Kroyer gives the following generic characters :— 
G. CnioxccETES.— Cephalothorax depressus, subtriangularis, eadem 
fere longitudine ac latitudine, antice truncatus, fronte lata rostroque ho- 
rizontali, bifido, brevissimo. — Pedes 2di paris duplicem cephalothoracis 
longitudinem superantes, triplicem vero non attingentes; pedes 1mi paris 
2dis tertiisque breviores, cephalothorace vero longiores (interdum du- 
plo); chelis acuminatis, falcatis; pedes. 2di, 8tii, Atique paris com- 
pressi, 9ti paris subcylindrici. Stius pedum maxillarium externorum 
articulus fere quadratus eadem pene longitudine ac latitudine ; 4tus 
articulus angulo interno tertii adnexus; oculi crassi, in orbitam retrac- 
tiles; pars antennarum externarum terminalis mobilis brevissima. .Ab- 
domen sex constat articulis.—'The name Chioncecetes is from zw», nic, 
and ouxq17:, incola. 
* Ann. and Mag. Nat. Hist., xx, (184'1,) 206. 
1 See page 127, where it is placed with the Ozins. "The branchial cavity is 
very large, as in Potamia, and contains outside of the branchie a large open 
space. "The shell of a specimen from the Sandwich Ids. closely like the G'. natalen- 
$is of Krauss, has the appearance of a fresh-water or land species, the texture being 
less caleareous than in most marine species. The specimen was not collected by 
the writer, and its exact habitat is not known. Krauss's species occurred under stones 
on the shores at the mouth of a river in South Africa. 
,Í Crust. D'Orbign. S. Am. 29, pl. 15, 
8 Crust. D'Orbign. S. Am. 31, pl. 16. 
| Last volume of this Journal, p. 425. «| Tidskrift, ii, 249. 
