AKT. 7 CESTODE PARASITES OF BIRDS — LINTON 65 



1014, June 2. — Forty-five, from 10 to 30 mm. in lengtli. 

 (U.S.N.M., Helm. Coll. 7894 (type).) 



See under F. faseiolaris for other dates. F. falciforinis 

 was found in considerable numbers associated with F. fascio- 

 lans in material from O. deglandi which had been placed 

 in the same bottle before it was noted that more than one 

 species was represented. A slide prepared at the time of 

 collecting on August 14, 1913, makes it clear that F. falci- 

 fortnis was present in the scoter which was examined on 

 that date. 

 Oidemia pers'picillata: 



1914, February 18.— Three; 115, 120, and 130 mm. in length, 

 respectively, with nearly uniform breadth of 2 mm. 

 ClanguJa h yemalis : 



1914, February 16. — Eight ; smallest, length 9 nnn., maximum 

 breadth 1 mm. My notes made Avhile making a preliminary 

 examination of formalin material record a specimen from 

 this lot measuring 34 mm. in length and 4 mm. in maximum 

 breadth, but the greatest length noted in the alcoholic ma- 

 terial is 15, with a maximum breadth of 3. These forms from 

 G. hyeinalis are more corrugated than those from Oidemia., 

 but the reproductive organs are of the same type as in the 

 forms referred to F. falciformis. 

 FuJicci ainericana : 



1920, November 3. — Tavo strobiles, collected by Robert A. Goffin. 

 The larger specimen in balsam measures S mm., exclusive of 

 pseudoscolex ; greatest breadth 1.4; length of pseudoscolex 

 4.2. The strobile tapers to a blunt point at the posterior end. 

 There are about five sets of reproductive organs to the milli- 

 meter at the posterior end and about six to the millimeter in 

 the median region ; reproductive organs at the posterior end 

 mature, but ova not yet developed. 



EXPLANATION OF PLATES 



t. cirrus. xg. shell gland. 



cm. circular muscle. sr. seminal receptacle. 



cp. cirrus-pouch. sv. seminal vesicle. 



de. dorsal excretory vessel. t. testis. 



ex. excretory vessel. ie. transverse excretory vessel. 



gc. genital cloaca. u. uterus. 



im. inner longitudinal muscle. v. vagina. 



Im. longitudinal muscle. vd. vas deferens. 



n. nerve. ve. ventral excretory vessel. 



0. ovary. vg. vitelline gland. 



om. outer longitudinal muscle. ?/. yolk reservoir. 



ot. ootype. yd. vitelline duct. 



sd. sperm duct. 



10582—26 5 



