No. 2.] A NEW MARINE TRICLAD. 189 
when fully grown, 15 mm. Egg-capsule elliptical, length 
2.5-4 mm. 
B. candida, Girard (B. parasitica Leidy ; Planaria limuli 
v. Graff).+ 
++ Testicular sacs small, about 170 in number, lying on 
either side of the body, but extending inward a considera- 
ble distance between the gut-diverticula, especially in the 
anterior region of the body; brain enclosed in a fibrous 
capsule. Length when fully grown, about 8 mm. Egg- 
capsule elliptical, length 1.25 mm. BZ. propingua nov. Sp. 
** Small species, with the posterior rami of the gut uniting 
soon after hatching and forming an unpaired stem; both ends 
of the body alike, tapering, when the animal is fully extended. 
Ducts at the posterior inner surfaces of the uteri. Penis keg- 
shaped. SYNC@LIDIUM, nov. gen. 
1 
+ Testicular sacs very large, the average number being 
14 on either side of the body; lying between the simple 
gut-diverticula; brain relatively large, not enclosed in a 
fibrous capsule. Length, 3 mm. Egg-capsule oblong, length 
75mm. 5S. pellucidum, nov. Sp. 
THE UNIVERSITY OF CHICAGO, 
March 1, 1893. 
POSTSCRIPT: 
My attention was not called to Verrill’s paper on the Marine 
Planarians of the New England coast (Trans. Conn. Acad., 
Vol. VIII, January, 1893) till after I had handed in my manu- 
script for publication. Verrill has anticipated me in founding 
a family for the reception of Bdelloura candida — the only 
species which he recognizes; but the characters which he 
assigns to this family are not in all respects satisfactory. 
1 Leidy ('51) describes another species as Bde/loura rustica, from Egg Harbor, 
N. J., where it was found on Ulva /atissima. I do not include this in my table, 
because I doubt that it belongs in the genus Bde//oura. Equally doubtful is 
Stimpson’s allocation ('58) of Planaria longiceps of Dugés ('30) in the same 
genus. 
