RESEARCHES IN HELMIXTHOLOGY AND PARASITOLOCrV. 191 



Trichosovium tcnuissimum. Diesing, Syst. Helm., ii, 256. Body 

 cylindrical, obtuse at both ends, viviparous. Four females, 7 lines 

 long by 0.25 mm. thick. Intestine of the dove, Zenaidura caro- 

 line^isis. From two birds. Florida. Dr. B. H. Warren. 



f Monopetalonoiia ercmita. — Body cylindrical, slightly narrowest 

 anteriorly. Head with an annular expansion of the integument, 

 which is more dilated below. Mouth with a pair of half-conical 

 lips, divided into four papillae at the apex. Tail short, straight, 

 conical, obtuse. 



A single female 19 lines long and nearly r line thick at the mid- 

 dle. Obtained by Dr. J. \'an A. Carter from the masseter muscle 

 of a badger, Meles labradorica, at Ft. Bridger, Wyoming. 



The head and mouth have the characters of Physaloptera. Two 

 apertures are visible in advance of the end of the tail, one at the 

 distance of 0.25 mm., the other 0.625 mm. 



Ascarix s'lDiphw , Rudolphi. Diesing, Syst. Hel., ii, 155. 



A large quantity from the stomach of a dolphin, Laoe?ior/iy7u/ius :\ 

 Pacific Ocean. Dr. Wm. H. Jones, U. S. N. 



Ascaris compar, Schrank. Diesing, S3'St. Hel., ii, 170. 



One male r Y\ inches long. Intestine of the quail, Ortyx virgin- 

 ianus. Florida. Dr. B. H. Warren. 



Ascaris vcsicularis, Frolich. Diesing, Syst. Hel., ii, 148. 



Two females and two males. Intestine of the quail, Ortyx vir- 

 gmiayius. Florida. Dr. B. H. Warren. 



Ascaris deprcssa, Rudolphi. Diesing, Syst. Hel., ii, 156. Intes- 

 tine of Strix nivea, Leidy, Pr. A. N. S., 1858, 112. 



Two females 2],4. inches by 3 mm. Intestine of Sirix brachyoti/s. 

 Florida. One female i ^4 inches. Bubo virginianiis. Chester Co., 

 Pa. Dr. B. H. Warren. 



Ascaris cnsicaudata, Rudolphi. Diesing, Syst. Hel., ii, 184. 

 Labia large and prominent ; apex of tail defined as a short ensi- 

 form appendage. Five females to 3 inches long by 1 mm. broad. 

 Ejected from the mouth of a mocking bird, Mimus polyglottus. 

 Jacob Geismer. 



Ascaris )nicrocep/iala, Rudolphi. Diesing, Syst. Hel., ii, 155. 



Numerous specimens from the stomach of the night heron, Nycti- 

 ardea grisea. Chester Co., Pa. G. W. Roberts, through Dr. B. H. 

 Warren. Specimens from Ardea /lerodias, Hydro7iassa tricolor, and 

 Botaur7(s mugitans. Florida. Dr. Warren. 



Ascaris spiculigera, Rudolphi. Diesing, Syst. Hel., ii, 157. 



From Graculus dilop/ius, Plotiis a7i/ii)iga, Pelica)ius trac/iyr/iync/ii/s, 

 and P.fiisciis. Leidy, Proc. xlcad. Nat. Sci., 1858, no; 1882, 109. 



