SCIENTIFIC SOCIETIES. 205 



was not a Leech or Lamprey, and were quite afraid to touch it; they said 

 they never saw one like it before, so I am afraid there will be a difficulty in 

 getting more of them, but will try." Later on Mr. Clark sent me a note 

 from one of his servauts, from which I gather that other similar specimens 

 had been seen, though unfortunately not secured. As the Editor of this 

 Journal directed attention to Dutrochet's " Land Leech" in 1887 (see Zool. 

 1887, p. 515), and as this large Leech is said by Dr. R. Blanchard, who is 

 the best living authority on the group, to be " une gigantesque Trocheta 

 subviridis" \ think it as well to put on record the appearance of this huge 

 form. During my absence in the spring Mr. Pocock had it under observation 

 in water for something like two months, and he often observed it extend 

 itself to about the length of a foot, or about twice the known maximum 

 length. Preserved in spirit it measures about 230 ram. or something like 

 9 inches. Its great size appears to be the only point worthy of special 

 remark.— F. Jeffrey Bell (British Museum, Nat. Hist). 



SCIENTIFIC SOCIETIES. 



Zoological Society of London. 



June 16^. — Sir W. H. Flower, K.C.B., F.R.S., President, in the chair. 



Mr. Sclater exhibited and made remarks on a coloured drawing of the 

 Gnu of Nyassaland, taken by Mr. Caldwell from the specimen transmitted 

 to the British Museum by Sir H. H. Johnston, K.C.B., and exhibited by 

 Mr. Sclater at a former meeting. The specimen seemed to be referable to 

 a new local form of the Brindled Gnu, which Mr. Sclater proposed to name 

 Connochates taurinus johnstoni. 



Mr. Holding exhibited and made remarks on various abnormal horns 

 and antlers of the Caucasian Wild Goat and two species of Deer. 



Mr. E. E. Austen gave an account of a journey undertaken by Mr. F. 0. 

 Pickard-Cambridge and himself up the Lower Amazons, on board Messrs. 

 Siemens Bros. Cable s.s. * Faraday,' for the purpose of making zoological 

 collections on behalf of the British Museum. No terrestrial mammals 

 were met with, but observations were made on the two species of freshwater 

 Dolphins, Inia geoffroyensis and Sotalia tiicuxi, or S.fluviatilis, which are 

 extremely abundant in the Lower Amazons. Among the birds the only 

 species of special interest collected were a little Goatsucker from Manaos, 

 referred provisionally to Nyctiprogne leucopygia, and a Woodpecker, Celens 

 ochraceus, of which the British Museum previously possessed but two 

 specimens. The Reptiles and Amphibians met with all belonged to well- 

 known and widely-distributed forms, and the chief interest of the collections 

 centred in the Invertebrates. Among these Mr. Pickard-Cambridge made 



