892 SUMMARY OF CUKRENT RESEARCHES RELATING TO 



very large, and its surface shows a branching structure, presumably of 

 blood-vessels. Three other species are dealt with — AUo/iisms pigmen- 

 tatiis, HemiporcelUo earinatus, and Guharis granidatus. 



Isopod from Guacharo Cave, Trinidad.* — W. E. Collinge describes 

 Calycuoniscus spinosas sp. n., from the guano of a cave in Trinidad 

 called the Guacharo Cave. The cave is tenanted by the Oil-bird or 

 Guacharo {Steatornis steatornis). From the nests of the bird specimens 

 were procured of Cahjcuoniscus hodklni Cllge, previously obtained from 

 beneath the bark of trees in British Guiana. The new species differs in 

 possessing a smaller number of the peculiar chitinous cup-shaped organs 

 on the segments of the body, and they are also more elongated ; in the 

 form of the cephalic lobes, which are exceedingly small ; and in other 

 quantitative characters. 



Cladocera from Victoria Nyanza.f — Th. Delachaux reports on a 

 collection from this region, from the lake itself (thirteen species), and 

 from a stream near Bukoba (seven species). The list adds to Daday's 

 previous list for Victoria Nyanza tlie following species : — Macrothrii 

 laticornis (Jurine), Alona pofpei Rich., Chydorus harroisi Richard, and 

 Monospilus dispar G. 0. Sars. There are no new species to describe, V)ut 

 the author communicates some notes and adds some distinctive figures. 

 There is interest also in the geographical distribution. 



Annulata. 



Australian Polychseta.:}: — W. B. Benham continues his report on the 

 Polycha3ta collected by the Fishing Industries' ship " Endeavour." He 

 deals with fourteen additional species, of which six appear to be new. 

 Apart from five widely-distributed species, the relation of the Australian 

 Polychfet fauna is with that of the Pacific. Its difference from that of 

 New Zealand is very marked. The new forms include Cheilonerds peri- 

 stomialis g. et sp. n., in which the peristomium is produced laterally and 

 ventrally to form a large, widely extending, collar-like lip, and the base 

 of the notopodium is raised into a lamelliform expansion exceeding in 

 height the rest of the parapodium throughout the greater part of the 

 body. The occurrence of Priapulus caiidatus in Austrahan waters is 

 noted.§ 



Australian Polychsetes.d — ^F. Fauvel deals with a collection of 

 Polychtetes from the Adelaide Museum, numbering fifty species in thirty- 

 two genera. The only new species is Ophelia ashworthii, remarkable for 



* Joura. Zool. Eesearch, ii. (1917) pp. 29-30 (3 figs.). 



t Rev. Suisse Zool., xxv. (1917) pp. 77-93 (21 figs.). 



; Biol. Results Pishing Experiments, Commonwealth of Australia, iv. pt. ii. 

 (1916) pp. 127-62 (3 pis.). 



§ Biol. Results Pishing Experiments, Commonwealth of Australia, iv. pt. iii. 

 (1916), not paginated. 



II Arch. Zool. Exp^r., Ivi. (1917) pp. 159-277 t5 pis. and 29 figs.). 



