558 liEVlEW. 



des rapports anatoraiques tres differents, et uue 

 fonction physiologique tout autre/' 



" Nos recherches etablissent que les organes cilies ue 

 meritent pas le nora d'entonnoirs terminaux des organes seg- 

 mentaires. 



" 1°. On ne pent les appeler entonnoirs, pour la bonne 

 raison quails ont la forme de cupules pourvues d'un plancher, 

 ou fond imperfore. 



'' 2°. lis ue terminent pas les organes segmentaires/' 



" Tout en conservant la meme signification morphologique 

 que les entonnoirs des Chetopodes, ils perdent chez la I*ie- 

 phelis la valeur reelle, anatomique et fonetionnelle d'enton- 

 noirs terminaux des glandes segmentaires/' 



'^ lis fonctionnent commes moteurs du sang dans la partie 

 non contractile, ou coelomique, de la canalisation sanguine. 



'' lis sont des lieux de proliferation des hematocytes/^ 



My own views were expressed as follows : 



'^The lumen of the funnel often appears, however, to be 

 occluded, its place being occupied by a mass of vacuolated 

 protoplasm ; the fuuuel does not probably possess much func- 

 tional activity. This occluding of the lumen is, as we shall 

 see, carried to a much greater extent in Hirudo" (Pon- 

 tobdella). 



''The ciliary current carries corpuscles down the funnel 

 from time to time. These cannot apparently pass further, and 

 lodge in the dilatation," 



"■ The contents seem to consist mainly of degenerating or 

 macerating corpuscles" (Pontobdella). 



" I have found it perfectly easy to trace the fuunels in my 

 sections ; these open into the ventral sinus ; following upon 

 the neck of the funnel is a dilatation corresponding to that 

 described above in Pontobdella, and as in the latter genus 

 it becomes packed with corpuscles*' (Clepsine). 



" The arrangement and the character of the funnel about to 

 be described seems to me to be explicable by a theory of 

 degeneration following upon loss of function " (Hirudo). 



" Although it is a point exceedingly difficult of determina- 



