634 KECORD OF QUERENT RESE.\.RCIIES RELATING TO 



salmonewn Jord.). Tlic fishermen of the Niagara river at Buftalo 

 say that when the water becomes warm the fish gets too lazy to take 

 food, that it then loses flesh, and through its inertness becomes 

 infested with these lice. Having given this subject especial attention, 

 Professor Kellicott is inclined to think the account of the fishermen 

 is correct. The parasite occurs usually on the top of the head of the 

 fish. When there are several they arc, as a rule, huddled together, 

 often in heaps, so that the knife may remove a number at once ; it 

 occurs also on the fins. None were found in the mouth-cavity. As 

 many as twenty were taken from one lean fish. 



When living specimens of the Argulus were placed in a tank with 

 a small specimen of Lejpidosteus osseus and some minnows, tliey shortly 

 fixed on them, and the minnows soon died, apparently killed by the 

 parasites. When first put in, the fish would pursue and catch them, 

 but would eject them with a suddenness and a queer expression that 

 was most amusing. In a few moments they were left unnoticed by 

 the minnows. The gar recoiled in evident fear when one would be seen 

 approaching. A large female once fastened on to the long nose of the 

 gar, where it clung for several days, despite the vigorous efforts of 

 the fish to dislodge it. Cold weather seemed to destroy them ; the 

 fishermen assert that after frosts the blue pike become fat, and then 

 no lice are found on them. 



The species is called A. stizostethii. The author believes — against 

 the assertion of Leydig — that the abdominal lobes have a function of 

 resjiiration above all other parts of the body, and he describes with a 

 good deal of detail the appendages to the several legs. 



New Crustacea. — Mr. G. M. Thomas describes * some Crustacea 

 from Dunedin Harbour, New Zealand, the maximmn depth of which 

 is about 6 fathoms. They include one new genus and six new 

 species : — Mysis denticulata, Parafanais tenuis, Panoplcea (n. gen.) 

 spinosa, P. dehilis, AnijMlochus squamosus, and Megamoera fasciculata. 

 The last five are figured. 



Mr. T. W. Kirk describes | Paliniirus himidus, the common craw- 

 fish of the Sydney market, the total length of which, from tip of beak 

 to end of telson, is 24 inches, with a much swollen carapace 

 21^ inches in circumference. Though so large and common, it does 

 not appear to have been hitherto described. It is very near 

 P. Hugelii, from the Indian Ocean, but distinguished by its miich 

 larger size, by the beak, supra-orbital and antennal spines being 

 turned upwards, and by the telson being less triangular and rounded 

 instead of scarped. 



H. Eehberg has investigated | a spring in the island of Heligoland. 

 He found Gammanis puteanus, a Cyclops which has been assigned by 

 Fric to C. indcTiellus Koch, but which is a new species, a new Acarid, 

 and a new Pleuroxus, P. puteanus, n. sp. The latter is distinguished 

 by having the body contracted behind, and the cephalic rostrum of 

 about the same length as the labial appendage, and the eye four times 



* ' Ann. and Mag. Nat. Hist.,' vi. (1880) p. 1. t Ibi<l., p. 14. 



X ' Zool. Anzeig.,' iii. (1880) p. 301. 



