439 



stages than those previously observed were not obtained. In the course of 

 his journey through Uganda and the Sudan, Mr. Budgett received the most 

 liberal assistance from all the officials tbat he met with. — Mr. J. S. Bud- 

 gett also read a paper on the spiracles of Polypterus, in which he stated his 

 opinion that the spiracles of this fish were used to take in and to give out air 

 from the swim-bladder. — Mr. F. E. Beddard, F.R.S., read a communi- 

 cation dealing with the surface anatomy of the cerebral convolutions in Na- 

 salis, Colobus, and Cynopithecus. The wide differences which the brain of 

 Cynopithecus shows from that of the Baboons and its many points of resem- 

 blance to the brain of Semnopithecus were pointed out. Colobus was shown 

 to closely resemble Macacus in the structure of its brain. Three brains of 

 Nasalis were reported on, two of which the Author owed to the kindness of 

 Dr. Charles Hose, of Borneo. It was stated to be practically impossible to 

 distinguish the brain of this genus from that of Semnopithecus. — Mr. G. A. 

 Boulenger, F.R.S., read a paper on the Fishes collected by Mr. G. L. 

 Bates in Southern Cameroon. Examples of thirty-five species were con- 

 tained in the collection; these were enumerated and the new species, nine 

 in number, were described. One of the Species was made the type of a new 

 genus — Microsynodoniis. — A communication from Mr. W. K. Hutton, 

 M.A., contained an account of the anatomy of a Gephyrean Worm from the 

 Firth of Clyde. As the worm appeared to be hitherto undescribed, Mr. 

 Hutton proposed to name is Phascolosoma teres. — A communication from 

 Dr. J. G. de Man contained the description of a new species of Freshwater 

 Crab from Upper Guinea, under the name Potamon [Potamonautes) latidac- 

 tylum. — Mr. R. I. Po cock, F.Z.S., read a paper, prepared by himself and 

 the Hon. N. C. Rothschild, containing a description of a new species of 

 Spider of the genus Phrynarachne, discovered by Messrs. Rothschild and 

 E. E. Green in Ceylon. The members of this genus were noteworthy on 

 account of the perfection of their imitation of a patch of bird's dung, which 

 acted as a lure to butterflies. — A communication received from Dr. H. J. 

 Hansen, of Copenhagen, contained a monograph on the Crustacean genera 

 Serg estes and Petalidium, with an excursus on the luminous organs of Ser- 

 hestes Challengeri n. sp. During a visit to England last summer Dr. Hansen 

 yad been empowered by the authorities of the British Museum (Natural 

 History) to examine all the specimens of reputed species of these genera 

 preserved under their care in the extensive 'Challenger' Collection. A min- 

 ute investigation of all the specimens called for some systematic changes, 

 but on the whole confirmed the view which he had expounded to this Society 

 in 1896, namely, that many specific names had been needlessly applied to 

 larval forms of species already known in the adult condition. On the other 

 hand, Dr. Hansen found one single specific name covering specimens of 

 four distinct species, two of these being new to science, and one of the new 

 ones being exceptionally remarkable for the possession of luminous organs. 

 These, which were not known to occur in any other species of the genus, were 

 great distributed in numbers over the whole fabric of Sergestes Challengeri. 



2. Deutsche Zoologische Gesellschaft. 



Angekündigte Vorträge: 

 5) E. Wasmann (Luxemburg): Die Thoracalanhänge von Termi- 

 tozenia, ihr Bau, ihre imaginale Entwicklung und ihre phylogenetische 

 Bedeutung. 



