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BIBLIOGRAPHY. 
the right. Anterior to the testicles, either in the median line 
or slightly laterally, we find the gobular ovary, which is smaller 
than the testicles and generally covered by the uterus. The 
lateral vitellogene glands, like the uterus, are situated in the 
middle third of the body, and are composed of 10-12 acini each 
side. Genital opening anterior of acetabulum ; a cirrus cannot 
be seen, but the winding end (vesicula seminalis) of the vas de¬ 
ferens is geoerally evident. Eggs 0.029 mm. long by 0.011 mm. 
broad. Excretory pore in the middle of the posterior extremity, 
which is surrounded by a muscular ridge. Color of fresh speci¬ 
men whitish, with a brownish spot (uterus). 
Hosts. —Phoca vitulina , Felis [Cains'] domestica, Canis fami- 
liaris, C. vulpes , Halichcerus fcetidns, Gulo borealis. 
Geographical Distribution. —Germany, Holland, Italy, 
France. 
4 
* 
2. Distoma (Dicroccelium) albidum Braun, 1893. 
1893. Distomum albidum Braun. 
Specific Diagnosis. —Length, 2.5-3.5 mm.; breadth, 1-1.6 
mm.; body spatulate, the anterior portion being narrower and 
generally separated by a constrictioo from the broader flat, 
posterior end ; the posterior end is rounded, and does not pos¬ 
sess the sucker-like muscular ridge. Integument thickly 
covered with spines (“ Dornen ’”), which are somewhat larger 
on the anterior portion than on the posterior portion ; these 
spines frequeotly fall, especially from the posterior portion. 
Oral sucker slightly larger than the acetabulum or nearly the 
same size (0.323-0.301 mm., smaller specimeo 0.269-0.242) ; 
acetabulum in the median lioe on the border between the first 
and middle thirds of the body, and occasionally more or less 
obscured by the uterus. Oral sucker followed by pharynx, and 
close to the latter the intestine branches ; intestinal caeca extend 
into the posterior end of the body. Testicles lobulate in pos¬ 
terior half of the body, one in front of the other ; ovary round 
or oval, 0.242 mm. in diameter (slightly less than one-half the 
diameter of the testicles) ; dextrad of ovary is situated a pyri- 
