ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 71 



numbers, both of species and of individuals, and that they occur from the 

 littoral region down to the greatest depths investigated. The ' Siboga ' 

 collection is by far the richest that has at present been made in any 

 tropical region. Twenty-five new species are established, twelve in the 

 genus Loxosoma. The others belong to the genera Loxocalyx, Fedicellma, 

 Barentsia, Vktorella, Arachmdium, Arachnoidea, Nolella, Mimosella^ 

 Buskia, Reptotuiigera, TubuUpora, Tervia, Supercytis, and Lichenopora. 



Polyzoa of Chilka Lake.* — Nelson Annandale reports on three 

 species — Loxosomatoides Isevis, Membranipora hippopus, and Alcyonidium 

 mytiU— found in Chilka Lake. Five other species are known from 

 brackish water on the coasts of India. The species L. Isevis and L. 

 colonialis (from the Ganges) have been found only in water of slight 

 or variable salinity. The others occur also in the sea. The author finds 

 that Loxosomatoides (which is closely related to the North American 

 fresh-water genus Urnatella) produces resting-buds, and the structure of 

 these is discussed. 



Annulata, 



Australian Polychsets.t— W. B. Benham reports on a collection of 

 Polychffita made by the ' Endeavour ' on the coasts of New South Wales, 

 Victoria, Tasmania, and South Australia. Of the twelve new species 

 collected by the ' Challenger ' four were found again by the ' Endeavour,' 

 namely, Stauronereis (Staurocephalus) australiensis, Polynoe plaUjdrrvs^ 

 Eunice, pycnobranchiata, and E. bassensis. The last was founded for a 

 small fragment ; it is now described fully. Eleven new species have 

 been established, e.g. one of each of the interesting and rare Lumbri- 

 conereid genera, (Enone and Lysarete. Perhaps the most interesting 

 feature of the collection is the abundance of the Polynoid genus Physali- 

 donotus, originally discovered in New Zealand, and later on in Japan. 

 Four new species are described. The genus is probably widely re- 

 presented through the Pacific Ocean. 



c 



Studies on Terebellids.|— M. Caullery discusses a number of Tere- 

 bellidae which he refers to a new tribe Thelepinse. The branchial fila- 

 ments are not ramified ; the number of segments with bundles of 

 capillary setfe is variable and usually large ; the tori of uncini form one 

 series ; and the uncini have a button at the base of the manubrium. 

 He finds that four well-established genera may be referred to the 

 Thelepinaj, namely, Thelepus Leuck, Streblosoina Malmg., Euthelepjis 

 Malmg., and Parathelepus n. nom. ( = Thelepides Soutliern). Caullery 

 describes Streblosoma longiremis sp. n. from the ' Siboga' collection, cha- 

 racterized by large anterior setigerous appendages, very long and fine 

 setfE, and cochleiform tubes which recall the shells of Turrilites among 

 Ammonites. Tlie wall of the tube is composed of an encrustation of 

 Foraminifera and a very coherent paste. The interior is lined by a 



* Mem. ludian Museum, v. (1915) pp. 121-33 (3 figs.). 



•^ Biol. Kesults Pishiog Experiments, Australia, iii. (1915) pp. 173-235 (8 rls.). 



+ Ball. Soc. Zoo). France, xl. (1915) pp. 44-53 (2 figs.). 



