RECENT ADVANCES IN SCIENCE 137 



Invertebrata. — "A New Freshwater Medusa from the Limpopo 

 River System " is recorded by Arnold and Boulenger (Proc. 

 Zoo/. Soc). Before the same Society papers have been read on : 

 Cestoda, by Beddard, continuing his previous studies by obser- 

 vations on the genera Amabilia and Dasyurotcenia ; new Penta- 

 stomids obtained from the Society's gardens in a useful paper by 

 Hett ; the adaptation of the ciliary mechanism to nutrition in 

 certain asterids and examples of Porania pulvillus with actinially 

 placed gills, by Gemmil. Certain annelids form the subject of 

 " Notes from the Gatty Marine Laboratory" by M'Intosh, and 

 Pryde records the polychaetes obtained by the Coldseeker {Ann. 

 and Mag. Nos. 85 and 86). 



The Insecta as usual form the subject of a series of papers. 

 Cummings records two new species of lice (Polyplax) {Proc. 

 Zool. Soc), and deals with their mouth parts {Ann. and Mag. 

 No. 86). Turner describes Australian Fossorial wasps {Proc. 

 Zool. Soc), and also Australian and Tasmanian species {Ann. 

 and Mag. No. 85). Dragon-flies from Borneo are treated by 

 Laidlaw {Proc Zool. Soc), and from Sierra Leone by Ris {Ann. 

 and Mag. No. 86). The Coleoptera, Diptera, Odonata, and Vermes 

 collected by the Wollaston expedition to Dutch Guinea have 

 been worked out by different authorities {Proc Zool. Soc). 

 Ants from Australia, Christmas Islands, Straits Settlements, 

 are described by Crawley {Ann. and Mag. Nos. 85 and 86). 

 Delias forms the subject of notes by Rothschild and Joicey and 

 Noakes {Ann. and Mag. No. 85), the last authorities also dealing 

 with a new Ornithoptera from New Guinea. The characters 

 and relationships of British species of Haliplus are given by 

 Balfour-Browne {Ann. and Mag. No. 85). Bees are dealt with 

 by Cokerell, and those in the British Museum collection by 

 Meade-Waldo {Ann. and Mag. No. 87). In the Annals and 

 Magazine of Natural History a new Indian scorpion, Charmus 

 indicus, is recorded by Hirst (No. 86), new species of Thysano- 

 ptera by Bagnall (No. 8y), new species of Heterocera from 

 Dutch New Guinea by Joicey and Talbot (No. 87), notes on 

 Carides by Borradaile (No. 86), and Australian Tabanidae by 

 Ricardo (No. 87). Hogson gives a preliminary account of the 

 Pycnogonida obtained by the "Gauss" in the Antarctic, and 

 Caiman discusses the Holotype of Ammothea carolinensis {Ann. 

 and Mag. Nos. 85 and 87). Early stages in one of the net- 

 winged midges, Paltostoma schineri, are described by Scott, and 



