ON THE ANGUILLULIDE. 115 
prominent circular lip; buccal apparatus none; pharynx short; esophagus long, clavate 
or fusiform, slightly tortuous ; intestine cylindrical, brown in colour; rectum distinct, 
cylindrical, colourless. Tail acute. Ovary double. Generative aperture anterior to the 
middle.” 
« Length 2 to 23 lines, breadth 355", tail ṣọ” long from anus. Œsophagus 515” long; 
ida 
rss” broad at commencement, qo at termination. Intestine 4455" broad. Rectum 
L” Jong.” | 
75 LA LJ 
« Hab. Stagnant ponds and rain-puddles in the suburbs of Philadelphia.” 
B. À. ECAUDIS, Ehrenberg. 
BEES c 159° (solum nomen), et ibid. 1855, p. 226.—Diesing, Sitzungsb. der Kais. 
| Akad. Bd. xlii. (1861) 629. 
«Hab. In terra muscorum Montis Rose (Schlagintweit et Ehrenberg).” 
13. A. LONGICAUDA, Ehrenberg. 
Monatsber. d. Berlin. Akad. 1853 (solum nomen), et ibid. 1855, p. 226; ejus Mikrogeologie, 1854, tab. 
xxxv. B. A. iii. F. (sine descript.).— Diesing, Sitzungsb. der Kais. Akad. Bd. xlii. (1861) 629. 
* Hab. In terra muscorum, Weissthorpass ad montem Rose, in altitudine 11,138’ 
(Schlagintweit et Ehrenberg)." 
14. A. RANÆ TEMPORARIA, Perty. 
Kleinste Lebensformen, 156. 
* Hab. Rana temporaria, in tractu intestinali cum Opalinis, Berne (Perty).” 
“Sine dubio Anguillulæ cum aqua haustæ vel cum cibo in intestinum translate.” 
7. TRIPYLA !, Bastian. 
GEN. CHAR. Body tapering at extremities. Caudal sucker large, well developed. Tnte- 
gument thick, having well-marked transverse striæ, with lateral and ventral pores; 
setze none(?); cephalic papillæ present or absent. Pharyngeal cavity none. (Eso- 
phagus cylindrical, distinctly muscular; posterior part separated by a constriction, 
but not containing any valvular apparatus. ntestine rather sparsely covered with 
coarse granules, their arrangement in cells not being visible. Vulva at about the 
middle of body. Uterus bifid, segments symmetrical. Spicules of an elongated 
cuneiform shape. Accessory piece posterior, very small. Lateral canals indistinct, 
having a faintly granular appearance. No regular ventral duct, but three large 
integumental canals in same region, close to anterior extremity. 
Movements active, often forming into a coil when touched. 
l T GLOMERANS, n. sp. (PL IX. figs. 16, 17.) 
Male, length 35”, breadth 515". 
External Characters.—Body white, cylindrical, tapering slightly forward, but more 
backwards, where it gradually narrows to the well-developed sucker. Head bluntly 
* Tpeis, three, and cis, an orifice, in allusion to the three well-marked integumental openings. 
* Q 9 
