487 



left caecum between sucker and the forking of the intestine and 

 opens ventrally between caecum and the margin of the body. Vitel- 

 laria lateral and short, extending only from the level of the anterior 

 margin of the sucker to the testes and composed of a few (10 or 12) 

 large follicles. 



30) Lepidophyllum steenstrupi Odhner. 

 Urinary bladder. 

 Anarrhichas lupus L. (Wolf-fish). 

 Zoarces anguillaris Peck (Eel-pout). 



3,5X2. Thin and flat. Broadest near posterior end which is 

 rounded. Tapering anteriorly. Surface spiny. Ventral sucker smal- 

 ler than oral sucker. Pharynx, oesophagus, lateral caeca reaching 

 little beyond middle. Ovary lobed, behind ventral sucker. Testes 

 lobed, at ends and outside of caeca. Vitellaria a few follicles round 

 ends of caeca just anterior to testes. Uterus with brown eggs be- 

 tween and posterior to testes. Penis anterior to sucker, crossing 

 under left caecum and opening on dorsal surface near left margin. 



31) Stenocollum fragile Linton. 



Intes. Mola mola (Sun-fish). 



New genus: arevóg, narrow; collum, neck. 2,75X0,3. Body 1X0,3. 



32) H omalomeir on pallidum. 

 Stomach and duodenum of 

 Fundulus heterochitus L. (Killifish). 



New genus, new species: '^O/.iaXóg, regular; f^iérçov, mass; pallidus, 

 pale. Linton: Bull. U. S. Fish Commiss. 1899. (1901.) p. 422. 

 PI. XXXIL f. 354. 



33) Stenakron vetustum. 



Intes. Hippoglossus Mppoglossus L. (Halibut). 



Hemitripterus americanus Gmel. (Sea Raven). 



New genus, new species: gtevÓq,^ narrow; ayiçor, end; vetustus, 

 old. Linton: Bull. U. S. Fish Commiss. 1899. (1901.) p. 485, 

 PI. XXXII, f. 359. PI. XXXIII, f. 360—362. 



34) Accacoelium macrocotyle Dies. 



Int. itfo/a mo/a L. (Sun-fish). 12X1,75. 



35) Accacoelium nigroflavum E,ud. 



Int. Mola mola L. (Sun-fish). 24X1,25. 



36) Accacoelium foliatum Linton. 



Int. Mola mola L. (Sun-fish). lOXl. 



37) Accacoelium contortum Pud. 



5X5 (coiled). 10X1,5 (straightened). 



