168 MARINE AND FISHERIES 



5 GEORGE v., A. 1915 

 Glossiphonia nepheloidea, Graf. 



Clepsine nepheloidea, Graf (1899). 



Glossiphonia elongata, Castle (1900). 



The collection contains but three specimens identified as this species. They 

 are rather elongated and worm-like in form with weak suckers. In size similar to 

 G. stagnalis, but capable of greater extension. The single pair of crop diverticula 

 are shorter than those of G. stagnalis. The single pair of eyes are large and widely 

 separated. Color light brownish to white. 



These specimens were obtained from dredgings at a depth of from one to six 

 feet in a soft muddy bottom. 



Glossiphonia heteroclita, Linn. 



Hirudo heteroclita, Linn. (1761). 



Hirudo hyalina, O. F. Miiller (1774). 



Clepsine hyalina, Moquin Tandon (1826). 



Four specimens identified as this species were from 5 to 11 mm. in length and 

 from 1 '5 to 3*5 in breadth. In shape they are similar to G. stagnalis, but not so 

 extensible. In color they are white to semi-transparent, which enables one to dis- 

 tinguish the six pairs of gastric caeca when filled with blood. The three pairs of 

 eyes, arranged in two parallel lines, close to the median line, show clearly against 

 the white background. 



The specimens were taken from the lower sides of stones along the shore of a 

 small bay and in a pool. 



Glossiphonia complanata, (Linn.) Johnston. 



Hirudo complanata, Linn. (1758), 



Clepsine elegans, Verrill (1874). 



Clepsine patelliformis, Nich. (1872). 



Thirty-six specimens have been referred to this species. In size, they vary 

 from 10-16mm. in length and from 2 to 6*5 mm. in breadth, though larger speci- 

 mens have been found. Individuals of this species are larger than those of the 

 species already described. The margins are thick and the head is not distinctly 

 widened. The three pairs of eyes are usually situated on annuli 2, 3, and 4. The 

 second pair, largest and farthest apart, is said by Castle (1900) to correspond to 

 the single pair of eyes in G. stagnalis. Seven pairs of gastric caeca. The ground 

 color varies from brown to bright green dorsally, paler ventrally. On the dorsal 

 surface are two brownish lines running from just behind the eyes backward. These 

 .lines are usually more or less interrupted by whitish spots metamerically arranged. 

 Elsewhere on the dorsal surface appear series of white or yellow flecks. On the 

 ventral surface there is also a pair of longitudinal brown lines but rather paler. 

 Dorsal cutaneous papillae are present but are not conspicuous. 



An examination of serial sections revealed a pair or tubes which come into 



