RESEARCHES IN HELMINTHQLOGY A.ND PARASITOLOGY. 1 95 



Male : tail conical, shortly mucronate, bialate, with a row on each 

 side of four or five nipple-like papillae. 



Female up to 25 mm. long by 0.5 wide at middle ; tail, 0.25 long. 

 Male, 15 mm. long by 0.3 wide at middle. (Drawing.) 



Numerous specimens were found tightly clinging by the mouth to 

 the lining membrane of the stomach of Trac/iemys scabra. 



Echinorhy)ichiis caudatiis, Zeder. Body narrow, cylindrical, nearly 

 equal throughout, .strongly corrugated .so as to appear annulated, 

 posterior extremity conical. Proboscis cylindrical, expanded at 

 base, with 9 to 11 rows of strong hooks, succeeded with about 15 

 rows of smaller hooks. Length, from 5 lines to an inch ; breadth, 

 0.5 to 1.5 mm. From two individuals of the Swallow-tailed Kite, 

 Elanoidcs fiircatns, in one of which they were a-s.sociated with Tcrnia 

 viator. Two specimens from Strix ncbidosa. Florida. Dr. B. H. 

 Warren. 



Echino) hynchus hy strix, Bremser. Body cylindrical, much corru- 

 gated, widest anteriorly and minutely echinate. Proboscis clavate, 

 with about a dozen rows of hooks. One-fourth to three-fourths of 

 an inch long and one line wide at the fore part. Numerous speci- 

 mens from the intestine of the Darter, Plotns anhiiiga. Florida. 

 Dr. B. H. Warren. 



Tce7iia siiiiplicissima (drawing). — Head small, unarmed, truncate : 

 bothria spherical, terminal, occupying the four angles ; neck very 

 long, nearly or as wide as the head, body gradually widening to the 

 posterior third and then tapering ; anterior segments transvensely 

 linear, subsequently reversed disklike, gradually longer and wider, 

 then carapanulate and gradually becoming longer and narrower. 

 Generative apertures and ova unobserved. A number of specimens 

 from the Cod, Gadus callarias, up to 20 lines by i mm. where widest. 

 Two only of the specimens retained the head. (Drawing. ) 



Tccnia Ambloplitis. — Head quadrate, spheroidal, con.sisting almost 

 entirely of the four large spherical bothria, with the summit slightly 

 prominent and conical or depressed and unarmed ; neck very short 

 or none ; bod}' compressed cylindrical, gradually widening from the 

 head to near the posterior part, where it slightly narrows to the end ; 

 segments linear, becoming gradually longer and wider, and then 

 more quadrate, all deeply and pretty regularly wrinkled into two or 

 three annuli. Genital apertures obscure. Length 8 to 12 inches ; 

 in alcohol contracted to 3^' to 5 inches ; greatest width 2 mm. 



Head 0.5 to 0.625 i^^^- ^o"? ^'^^ o-75 ^^ 0-875 broad. Bothria 

 0.375 mm. diameter. Commencement of body 0.625 wide. Ante- 

 rior segments 0.125 long, 0.625 wide ; subsequently 0.375 long and 



