32 CAPSALID.E. 



Fatn. II. CAPSALID^. 



Tristomiens, E. Blanchard in Ann. des Sc. nat. viii. 321 (1847). 

 Capsalid^, Baird, Entoz. Brit. Mus. 41. 



Obs. The mouth is inferior and not terminal. On each side, and 

 a little above it, there is a small sucker (bothria) ; and on the hinder 

 extremity a large sucker with a ventral attachment and aspect. The 

 cerebral ganglions are placed a little in advance of the oral aperture. 



2. ENTOBDELLA. 



Entobdella, Blainville in Lam. An. s. Vert. v. 295 (1818). 

 Phylline, Lam. An. s. Vert. v. 295. Baer in Nov. Act. Curios, xiii. 

 674. Moquin-Tandon, Monogr. 391. Diesing, Syst.Helm. i. 426. 

 Epibdella, Blainville in Diet, des Sc. nat. xlvii. 259, & Ivii. 567. 



Char. Body obovate ; the front subtriangular, with two oblique 

 marginal linear bothria; the mouth inferior, with a semicircular 

 thickened rim : sucker sessile, hemispherical, with a reflected mar- 

 gin, the concave surface rough with rowed granules, and the centre 

 armed with two horny four-hooked clasps. 



1 . E. hippoglossi. 



Tertia pediculorum species. Bast. Opusc. Subs. II. ii. 99. tab. 8. f. 11 



(1765). 

 Hirudo hippoglossi, Miill. Zool. Dan. Prod. 220. no. 2669; Zool. 



Dan. ii. 18. tab. 54. f. 1-4; copied in Encyclop. Meth. pi. 52. 



f. 11-14. Fabr. Faun. Grcpnl. 322. no. 302. f. 8. Turt. Gmel. iv. 



71. Baer in Nov. Act. Acad. Cces. Leap. Nat. Cur. xiii. 678. pi. 32. 



f. 5, 6. 

 Phylline hippoglossi, Lam. An. s. Vert. v. 295; 2de edit. v. 526. 



Stark, Elem. ii. 142. Johnston in Ann. Nat. Hist. i. 431. pi. 15. 



f. 1-3. Ray Soc. Rep. Zool. 1847, 472. W. Thompson in Ann. 



^ Mag. Nat. Hist. vii. 482. Gould, Invert. Massachus. 343. Moq.- 



Tandon, Monogr. 392. Dies. Syst. Helm. i. 426. 

 La Saiigsue de I'Hippoglosse, Blainville in Diet, des Sc. nat. xlvii. 269. 

 Epibdella hippoglossi, Blainville in lib. cit. Ivii. 567, atlas, f. 8. 



Egidh, Blutelg. 134. f. 79. 

 Tristoma hamatum, Rathke in Nov. Act. Acad. Cas. Leap. xx. 238, 



tab. 12. f. 9-11. Ray Soc. Rep. Zool. 1847, 472. 



Hab. The parasite of the Holibut {Hipjioglossus vulgaris). 



Obs. Body ovate, flat, thin, lubricous and semitransparent, so as 

 to permit the vessels and interranea to be seen distinctly ; and of 

 these the most conspicuous are the testes, which form two large 

 round white spots in the centre of the body. The sucker is very 

 large and subpedicellate, rough, with tubercles excepting on the 

 upper side which is smooth ; and it is also armed with two pairs of 

 elongate spinous teeth so placed as to form by their union a sort of 

 oblong or horse-shoe-shaped space running from the inferior margin 

 to the centre of the disc. 



