998 SUMMARY OF CUERENT RESEARCHES RELATING TO 



Australian Crustacea. — In a revision of the Australian Lfemo- 

 dipoda * Mr. W. A. Haswell gives a list of ten species as being well 

 ascertained Australian forms, and describes in full two new species of 

 Proto (P. condylata and P. spinosa), as well as Frotella australis, with 

 notes on other species. 



Mr. Haswell also gives f a revised list of the seventy known 

 Australian species of Isopoda (including two varieties), with descrip- 

 tions of new species of Anceus, Pm-atanais, and ParantJiura, and of 

 a remarkable new Sphseromid, Bregmocerella tricornis n. gen. and 

 sp., having the head armed with three prominent horn-like pro- 

 cesses, the two lateral ones being about one-fifth the length of the 

 mesial. 



In a further paper on the Australian Amphipoda t Mr. Haswell 

 deals with the genera Talitrus, AllorcTiestes, Neohule, Aspidophoreia, 

 Stegoceplialus, Ampelisca, Lysianassa and Anonyx, Eusirus, Leucothoe, 

 Atylus, Dexamine, Megamoera, Moera, X^nochetra, Haplocheira, Ear- 

 monia, and CyrtopMum ; several new forms are also described, in- 

 cluding a genus allied to CyrtopMum (Dexiocerella), but distinguished 

 by the presence of an appendage on the superior antennae, and the 

 multi-articulate character of the flagellura. 



Mr. C. Chilton has a short paper § on some Australian Edri- 

 ophthalmata, with descriptions of three new species, Glycerina affinis, 

 Moera /estiva, and Paratanais ignotus. 



Vermes. 



Pelagic Annelids-ll — M. C. Viguier reports the principal results 

 of his study of Annelid species in the Bay of Algiers. Before 

 defining an Annelid as pelagic, it has to be noted that (1) some, such 

 as the Heteronereidae, and Syllidee without alternation of generations, 

 are surface forms only dui-ing the period of reproductive activity ; 

 that (2) others, viz. the sexual stolons of Syllidse with alternation of 

 generation (the Polybostricae and Sacconereidse), are indeed pelagic, 

 but that the short period of their life is really the equivalent only of 

 the reproductive period of the former ; and that (3) there are others 

 apparently true surface forms throughout their whole life. This 

 third group contains only Alciopese and Phyllodocefej including with 

 the latter Tomopteris and Sagittella. The list of known pelagic 

 Phyllodocese M. Viguier has increased from one to six, which exhibit a 

 beautiful gradation in the concentration of their postcephalic rings 

 and in the disposition of their appendages. He has discovered two 

 new Alciopes. There are some forms, such as Ophryotrocha puerilis 

 and a species of Polynoe, about which it is difficult as yet to decide 

 whether they are truly pelagic or whether they migrate in adult life 

 to greater depths. He gives a catalogue of the observed species. 



» Proc. Linn. Soc. N. S. Wales, ix. (1885) pp. 993-1000 (2 pis.). 



t Ibid., pp. 1001-14 (4 pis.). 



X Ibid., X. (1885) pp. 95-114 (9 pis.). 



§ Ibid., ix, (1885) pp. 1035-44 (2 pis.). 



II Comptes Kendus, ci. (1885) pp. 578-9. 



