338 THE ZOOLOGIST. 



Mr. Frank E. Beddard read the first of a series of papers on the Jsopoda 

 collected during the voyage of H.M.S. ' Challenger.' The present com- 

 munication treated of the genus Serolis, sixteen species of which were 

 represented in the specimens obtained during the Expedition. Of these 

 nine were described as new. The author also gave a short account of the 

 geographical distribution of the genus, and pointed out some of its peculiar 

 structural points. 



Mr. Gwyn Jeffreys read the eighth part of his papers on the Mollusca 

 of the ' Lightning' and ' Porcupine' Expeditions. It included the families 

 Aclidm, PyramidelUda and Eulimida, with seventy-five species. Two genera 

 and twenty-three species were described by tlie author as new to science. 



Prof. F. Jeffrey Bell read the fourth of his series of papers on the 

 Holothurians. Tlie present communication gave an account of the struc- 

 tural characters of the Cotton-Spinner, Holothuria nigra, and especially of 

 its Cuvierian organs. 



Mr. F. Day read a paper on races and hybrids among the Salmonida, 

 in continuation of a former communication made to the Society, and con- 

 tinuing an account of the experiments made by Sir James Gibson-Maitland 

 in the hybridization of Salmonida in the ponds of Howietown. 



A communication was read from Mr. R. (]ollett, containing the descrip- 

 tion of some apparently new Marsupials obtained by Dr. Limholtz in 

 Northern Queensland. These were described as Phalangista Archeri, 

 P. herberteiisis, P. lemuroides, and Dendrohnjus LimhoUzl. — P. L. Sclatek, 

 Secretary. . 



Entomological Society of London. 



April 2, 1884.— J. W Dunning, Esq., M.A., F.L.S., &c.. President, 

 in the chair. 



Edward Pycniont Collet, Esq. (76, Islip Road, Kentish Town, N.W.), 

 Stanley Edwards, Esq. (Kidbrook Lodge, Blackheath, S.E.), F. Lovell 

 Keays, Esq., F.L.S. (Fairmile Court, Cobbam, Surrey), Edmund Shuttle- 

 worth, Esq. (8, Winckley Square, Preston), and John A. Finzi, Esq., 

 formerly a Subscriber, were balloted for and elected Members of the Society. 



The President read a letter received from IMr. A. J. Spiller. 



Mr. T. R. Billups exhibited specimens of Siijalphus obscurellm, No., 

 and Diospilits oleracens, Hal., bred from the cabbage-stem galls of Ceutho- 

 rhynchus sidcicoUis. Mr. Billups believed that tlie former species emerged 

 from the galls, whilst the latter species emerged from the eartli-cocoons 

 made by the weevil larvae. Specimens of C sulcicolUs, Gyll., its cocoons, 

 and gall were also exhibited. 



Mr. J. Jeiiner Weir remarked that he had found it impossible to grow 

 any of the cabbage-tribe in bis garden, owing to the amount of "club" 

 resulting from the attacks of this weevil ; tlie only remedy he had found to 

 be at all efficient was the free use of gab-lime. 



