ENTOMOSTRACA. 
277 
without exactly defining the age of individuals in question ; nor is the 
development followed out. Cantor (Ann. Nat. Hist. ix. p. 493) has 
enumerated the Myriapoda, collected by him at Chusan. There are 
three species : Scolopendra morsitans ; and two new ones, Polydesmus 
hicolor, and Scutigera rujdpes. 
Chilognatha. — A new genus, Scolopendrella, with one pair of ocelli, 
has been pointed out by Gervais (Ann. d. 1. Soc. Ent. d. Fr. xi. p. 47) : 
Sc. notacantha, inhabits the gardens of Paris. 
Chilopoda. — Newport (Proceed. Zool. Soc. p. 177) has enriched the 
family of the Oeophilidce with some new genera. — 1. Mecistocephalus is 
distinguished by the elongated head, and contains M.ferrugmeus, Koch ; 
M, 7naocillaris, Gerv. ; and three new species : M. punctijrons, from 
India; M. Guildingii, from St. Vincent (West Indies) ; and M. punc- 
tildbium, habitat not known. — 2. Necrophlwophagus, sub-genus of 
Geophilus, corresponding to the Geoph. longicornes, Gerv., contains the 
G. lo7igicornis, Leach {electricus, Gerv.) — 3. Gonibregmatus, with short 
transverse front ; projecting, thick, folded lip, adapted for suction ; long 
body, consisting of more than 160 rings, of which the two or three last 
are dilated and tuberous ; small posterior graspers for creeping. The 
G. Cummgii, a new species, 5" long, is from the Philippines. The author 
supposes, that Geophilus Walhenaeri may belong also to this genus. 
ENTOMOSTRACA. 
PHYLLOPODA. 
An ample treatise on a new Ento7nostraco7%, allied to the Linmadia, 
lately discovered at Toulouse, and called Isaura cycladioides, has been 
published by Joly (Ann. d. Sc. Nat, xvii. p. 293). Subsequently (ibid, 
p. 349) he has communicated some farther investigations on the allied 
animals hitherto known, from which it appears, that the genera Isawra, 
Joly, Estheria, Riipp., and Gyzicus, Audouin, come together ; and that 
Isaura cycladioides, Joly (= Cyzic. Bravaisii, And.), from France; 
Liranadia tetracera, Krynicki, from Russia ; and Esthe^da dahalacensis, 
Riipp., from Nubia ; are three species of this genus, for which the author 
has retained his name Isaura. Audouin’s name has remained uncon- 
firmed, although it possesses the right of priority to the Esthe^da of 
Riippell. The essential characteristics of the genus consist in this, 
that the very mollusk-like shell has projecting whorls, and that the pear- 
shaped process of the front in Limnadia, is wanting in this genus. 
The shell, as in many bivalve shells, has very distinct concentric striae, 
but such, in fewer number, are also found in Limnadia, which in this 
respect, however, offers some variety. In Isaura cycladioides, the 
shell resembles much that of a Cyclas ; it consists of a number of 
321 X 
