. CRUSTACEA. . 835 
Crustdcda froiii tlie coasts of Northumberland and Durham^ this species being 
taken there for the first time. 
Protomedeia ruhella, sp, n., Costa, Anftuario del Mus, Zool. della R. Universit. 
di Napoli, p. 164, tab. ii. fig. 8, a-c, froin the Bay of Naples. 
Batea, g. n., Miiller, Ann. & Mag. Nat. Hist. vol. xv. p. 276. Antennas 
simple. Coxae of the first pair of gnathopoda rudimentary, those of the 
second pair and first two pairs of pereiopoda largely developed. Coxa of the 
second pair of pereiopoda deeply excavated upon the upper part of the pos- 
terior margin. First, pair of gnathopoda rudimentary, consisting of coxa 
and basis onlyj second pair of gnathopoda subchelate. Mandibles having- 
an articulated appendage. MaxiUipeds having a squamiform plate on both 
the basis and ischium. Fourth and fifth pairs of pleopoda with styliform 
rami, sixth pair w-ith subfoliaceous raini. Telsorl single, deeply cleft— ^Bdtea 
caihannerists, sp. il., Muller, 1. c. p. 276, pi. x. fig. 1, from Catharine Island off 
the coast of Brazil 
Crangomjx fecurvUs (Gritbe), Heller, Verb, zool.-bot. Gesell. Wien, 1866, 
p. 982 (vide Gmnmarus recurvus, in ^Record’ for 1864, vol. i. p. 288). 
Dr. Heller considers that the genera Crangonyx, Niphargus, and Gam- 
marus, as described in the Catdlague of the British Museum and in the 
‘ British Sessile-eyed Crustacea,’ are but subgenera of the genus Gamntarus 
as defined by Fabricius. NowFabricius established his genus on the Cancer 
pulex of Linn tens j consequently we must consider all species that dilFer 
in structural character from the typical species as not coming within the 
scope of the same genus. This is the case with both of the genera above 
mentioned by Heller. 
Niphargus pnteanus (Caspary). Heller, t c. p. 982, considers this species 
synonymous with N. sty gins of Schjodte, and with N. aquilex of the 
^British Sessile-eyed Crustacea.’ In this opinion he coincides with the 
Catalogue of the Amphipodous Crustacea of the British Museum rather 
than with the joint authors of the ^ British Sessile-eyed Crustacea.^ 
Gdmmarm rceselii (Gervais), Heller, 1. c. p. 983, from the neighbourhood 
of the Salt-mines of Salzburg. The author considers this to be distinct 
from G.jkmaiilis [pulex'], while Prof. Milne-Edwards regards them as syno*? 
nymous. Gammarus pvdex, (Desmarest), Heller, 1. c. p. 984, taken in standing 
pools in the neighbourhood of Innspruck, at an elevation of 3000 to 4000 feet.- 
The author gives Desmarest as the original describer of this species, whereas 
Linnajus first named it Cancer pulex, Heller agrees with the authors of the 
^ British Sessile-eyed Crustacea’ in considering Prof. Milne-Edwards ’s G jlu- 
viatilis a synonym of this species. It is a circumstance worth . recording in 
the history of this species, that no describer has ever seen both G.pidex and G, 
f,uviatilis,jei undoubtedly there are two descriptions and, two figures. It would 
bo a curious incident should both have been taken from the same animal. — : 
Gammarus pungens (Edw.), Heller, 1. c. p. 984, Warm springs. Mount Cassini, 
Italy. This species appears to us, from M.-Edwards’s description, to be closely 
allied to Kphargus ; the author considers this species as forming part of a 
subgenus of true Gammari, therefore distinct from that of the next, which 
belongs to Gammarus in a more extended sense. 
Gammarus veneris, sp. n., Heller, 1. c. p. 981, taken in the well of VenitS^ 
Cyprus, fifty feet above the sea. The author considers, this species to be 
