54 RESEAKCHEwS IN HELMINTHOLOGY AND PARASITOLOGY. 



Plan ARIA, MuLLER. 



2. Planaria MacuUa. L,eidy, Proc. Acad. Nat. Sci., vol. 3, p. 

 251 ; Diesing, Syst. Helm., vol. i, p. 205. 



Length from 2^ to 6 lines ; breadth Y^. to i line. 



Hab. — Everywhere in ditches near Philadelphia. (Found in 

 great abundance between the outer decaying petioles and inner liv- 

 ing ones of the leaves of the Arum virginicum, growing in profusion 

 in ditches below the city.) 



3. Planaria Tnincata, n. s. — Body sublinear, posteriorly obtusely 

 rounded, anteriorly truncated, with the angles slightly prominent 

 laterally ; blackish white, translucent at margin, with a blackish 

 streak down the back. E5^es two, reniform, i -400th inch long by 

 i-50oth inch broad, i-200th inch apart. CEsophagus simple, cylin- 

 drical, }4, line long. 



Length 3 to 5 lines, breadth yo, to ^4th of a line. 

 Hab. — Found in a running rivulet in the vicinity of Newark, 

 Delaware. 



4. Planaria {Typlilolepta :'' Oersted), Fuligi)iosus, n. s. — Body oval, 

 dilated ; inferiorly flat, superiorly moderately convex, fuliginous. 

 Eyes none ; in their ordinary position a slightly greater accumula- 

 tion of black pigment upon the upper surface. Mouth inferior, a 

 little posterior to the center. CEsophagus .simple, cylindrical, white, 

 I line long by ^ line broad. 



Length 5 lines, breadth 4 lines. 



Hab. — Rancocas Creek, near Pemberton, N. J. 



Anguillula, Oken. 



5. Angiiilhila Longa, n. s. — Body cylindrical, tran.slucent, color- 

 less. Mouth round, buccal capsule inverted campanulate oesophagus 

 and intestine cylindrical, equal in diameter, the former i-25th inch 

 long. 



Female, 2 to 3 lines long ; anteriorly i-333d inch broad ; middle 

 I -285th inch. Tail narrow, acute, i-i nth to i-75th inch long from 

 anus. 



Male i^ to 2 lines long; po.steriorly dilated, obtusely rounded, 

 curved, with three slight tubercular thickenings of the integument 

 ventrally ; i-2S5th inch broad ; at middle i -370th inch broad. 

 Penis a curved spiculum, i -280th inch long. 



Hab. — Found in very great abundance, wriggling above the sur- 

 face of .soft mud, in .stagnant ditches in the neighborhood of Phila- 

 delphia. 



