31 



ford graduates) , and now investigating the natural history of the regions in 

 question. 



3rd December 1885. — Mr. Vincent I. Chamberlain exhibited and 

 made remarks on a specimen of Trap -Door spider and its nest from Cali- 

 fornia. — A paper was read by Prof. J. Spencer Cobb old, On Parasites 

 collected by the late Charles Darwin. This contains a letter from Mr. Darwin 

 when sending the author the specimens in 1869, and this is followed by Dr. 

 Cobbolds own Memoranda concerning eight of them , only one , however 

 [Distoma incesta) proving new. — A paper was read by Mr. P. Herbert Car- 

 penter, on the variations in the form of the cirri in certain Comatulce. The 

 shape and number of the cirrus joints of Antedon phalangium vary so greatly 

 both in the same individual and in individuals from different localities that 

 if the two extreme forms were met with in an isolated condition they would 

 assuredly be referred to different species of Antedon. The cirri of this species 

 are classed by the author under four types. [A] Long jointed; [B) Inter- 

 mediate; (C) Square jointed; [D) shortjointed. A is the typical form which 

 occurs in the Mediterranean variety but is also found in the Atlantic spe- 

 cimens together with B, and also but more rarely C; while D is confined to 

 individuals from the Minch and the Ross-shire coast, occurring together 

 with C, which is rare in examples from the Atlantic, except in those dredged 

 by the »Dacia« on the SeineBank. — A technical paper by Mr. Joseph Baly, 

 (Part I) On the Colombian species of the genus Diahrotica with descriptions 

 of those hitherto uncharacterised was summarised by the Secretary. The 

 author states that he has divided the genus into two principal sections, de- 

 pendent on the relative lengths of the second and third joints of the An- 

 tennae. 



17th December 1885. — Mr. Chas. Stewart exhibited the stridulating 

 organs of a spiny Lobster [Palinurus] , he showed under the microscope the 

 file like bow and its two tubercles, also by means of a softened specimen 

 attached to the carapace he produced the peculiar grating noise which the 

 animal makes during life. — A fine example of the Common Polecat [Mti- 

 stela putorius) shot neai' Caermarthen, Wales, was shown for Mr, E. A. Heath. 

 — Mr. J. Jenner Weir drew attention to and made Comments on the recent 

 issued folios illustrating the Exotische Schmetterlinge of Dr. St au dinger 

 and Langhans. — Afterwards the following papers were read and dis- 

 cussed : — (1) Entomostraca collected by Mr. A. Hal y in Ceylon, by Prof. 

 G. Stewardson Brady. The fresh water forms were obtained at Colombo, 

 the Marine species were dredged at a depth of 2 fathoms, in the Gulf of Ma- 

 naar. The fresh water Copep^da and Cladocera approach well known Euro- 

 pean species. Among the Ostracoda is a curious new generic form Cypri- 

 notes. Additional information is also given by the author respecting Cypris 

 cylindrica [Malcolmsoni] and C. suhglobosa] (2) A Monographic Revision of 

 the Recent Ephemeridae Part IV. byt he Rev. A. Eaton; (3) Colombian spe- 

 cies of the genus Diahrotica Part II. by Mr. Joseph Baly. — J. Murie. 



lY. Personal -Notizen. 



Greifswald. Dr. B. Solger, bisher Prosector und a. o. Professor 

 in Halle a/S. ist als a. o. Professor der Anatomie u. Custos am anatomischen 

 Museum nach Greifswald versetzt worden. 



