ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 37 



Two Filarise in Snake's Blood.*— F. d'Herelle and H. Seidelin 

 describe from the blood of Boa imperatoris from Yucatan a new micro- 

 filaria, named as Filaria imperatoris sp. n., and from another snake 

 (Leptophis mexicanus) another new species, named as F. Minchei. 



Larva of Echinorhynchus in Tench. f — J. K. Riquier found en- 

 capsuled larvae of Pomphorhynchiis Jsevis Zoega (= Echinorhynchus 

 proteus Westr.) in the liver, intestinal wall, and peritoneum of Tinea 

 vulgaris. They are also known from minnow, stickleback, etc. When 

 transferred to pike the larvae grew into mature forms in sixty-five days, 

 and attained their maximum size in about three months. 



Platyhelminthes. 



New Species of Davainea.|— 0. von Linstow describes D. pro- 

 r i ncial is sp. n. from Francolinvs adspersus from German S.W. Africa, 

 and has some notes on Davainea in general. The genus is readily 

 distinguished, for there is no rostellum, and the apex shows two closely 

 adjacent rings of very minute and very numerous hammer-shaped hooks. 



Excretory System in Triclads.§— Al. Mrazek has found in Flanaria 

 riff a, Dendrorochon lacteum, Polycelis nigra, and other forms, convincing 

 evidence that there is a richly branched system of excretory vessels in 

 the pharynx. 



New Trematode from Man || — E. Rodenwaldt describes Fasciolopsis 

 fullebornii sp. n. f rom an Indian. Three specimens were passed. The 

 generic diagnosis of this type of fluke is as follows : — Large Fasciolinre 

 with smooth unarmed skin and tongue-like shape ; large digitate testes 

 one behind the other ; the two divisions of the gut are unbranched ; 

 the ovary is small, finely branched, and lies along with the shell-gland 

 about the middle of the body ; there is a relatively large cirrus-pouch. 

 Four species are known. Attention must be directed to the exceedingly 

 ^ine coloured plate. 



Incertee Sedis. 



Polyzoa of Madeira.^" — A. M. Norman gives a list of 139 species of 

 Polyzoa from Madeira and neighbouring islands. He has himself found 

 114 of the 139, and has added 39 to those previously recorded for this 



region. 



Echinoderma. 



Teeth and a Lantern in Echinoneus.** — Alexander Agassiz calls 

 attention to the interesting discovery (by M. Westergren) of the presence 

 of teeth and a fully-developed lantern in young specimens (3, 7, and 

 4 '25 mm. in length) of the West Indian Echinoneus semilunaris. 

 " This is perhaps one of the most interesting recent discoveries in the 



* C.R. Soc. Biol. Paris, lxvii. (1909) pp. 409-11 (1 fig.). 

 t Centralbl. Bakt. Parasitenk., lii. (1909) pp. 248-52 (3 figs.). 

 \ Torn, cit., pp. 75-7 (2 figs.). 



§ Zeitschr. wiss. Zool., xciii. (1909) pp. G4-72 (5 figs.). 

 | Centralbl. Bakt. Parasitenk., 1. (1909) pp. 451-61 (1 pi. and 3 figs.). 

 1 Journ. Linn. Soc. (Zool.), xxx. (1909) pp. 275-314 (10 pis.). 

 ** Amer. Journ. Sci., xxviii. (1909) pp. 490-2 (1 pi.). 



