408 REPORT ON ZOOLOGY, MDCCCXL1V. 



has described the Gammarus locusta, of the Baltic, very particularly, as it 

 differs from Milne Edwards's description in several points, though agreeing 

 with specimens from the North Sea. 



Koch (Pz. Fna. pt. 186 ; Dch. Crust. 36) has figured, along with Gam- 

 marus pulex, F., a new German species, G. pittaneus. 



Kroyer (Naturli. Tidsskr. N. R. 238) has published a carcinological 

 essay, in which he has described in full the species following : Orchestia 

 grandicornis, from Valparaiso ; 0. nidroensis, from Drontheim ; 0. jtlatemis, 

 from Rio la Plata ; Talitrus tripudians, from the Cattegat ; Gammarus ani- 

 sochir, from Rio Janeiro. 



Tellkampf (Wiegm. Arch. 1844, i, 321) has described' a very remark- 

 able genus with material differences from all the others, Triitra, of which 

 the species Tr. cavernicola was discovered by himself in the Mammoth 

 cave in North America. 



CAPRELLINA. Kroyer (ibid.) has characterized a new genus, Podalirius : 

 mandibles without palps ; the second segment of the body with legs, and 

 destitute of branchial vesicles, which the third and fourth have, the fifth 

 with a pair of very imperfect two-jointed legs without claws ; the tail-piece 

 very small, two-jointed. P. typicws: fuscus pilosus, capite thoraceque 

 nermibus ; long, 2'". Found on a seastar, Asteracanthion rubens. 



ISOPODA. 



ONISCIDES. Koch (ibid.) has figured several of this family, among 

 others the new species Armadillo willii, from Northern Italy ; Porcellio 

 urbicus and Itea erassicornis, from Germany. 



Zaddach (ibid. 11) describes as doubtful species, Porcellio %-lineatus, 

 Koch (?), and conspersus, Koch (?) ; and as new, P. tristis, ovatus, Itea Items, 

 mengii, Annadillium grubii, conspersum. 



MYRIAPODA. 



Monograph of the class Myriapoda, order Chilopoda, with observations on 

 the general arrangement of the Articulata, by George Newport, Esq. 

 (Trans. Linn. Soc. xix, 265.) 



The observations on the general arrangement of the Articulata pro- 

 perly relate to the Myriapoda alone, and are principally directed to 

 combat the view that they are to be regarded as true insects. He says 

 in respect to this, "The Myriapoda certainly have many close relations 

 to the larva state of true insects, in the elongated form of the body, in 

 their mode of respiration, in the structure of the organs of circulation and 

 nutrition, and also in the arrangement of their nervous system ; but they 



