RESEARCHES IN HELMINTHOLOGV AND PARASITOLOGY, 57 



[June, 1851. ] 



Dr. heidy stated that the Cicada scptcndechn was subject to a fun- 

 gous disease. The posterior part of the abdomen he observed in 

 several instances to be filled with a mass of oval spore-like bodies, 

 embossed upon their surface, but becoming smooth from endosmosis 

 when placed in water. 



He also stated that he had just received the dead larva of a lamelli- 

 corn insect, which was filled wath the same fungus which sometimes 

 attacks the mole cricket. 



[August, 1851. No. 82. See Bibliography.] 



HELMINTHOLOGICAL CONTRIBUTIONS NO. 3. 



GKN. Nov. vSVNPLECTA.* 



Body nematoid, cylindroid, distinctly and coarsely annulated. 

 Head composed of two trilobed portions, between which is the 

 mouth. CEsophagus long, simple. Intestine narrow, simple. Male, 

 attenuated at the extremities ; posteriorly rolled into a .spiral, and 

 furnished ventrally with numerous tegumentary tubercles. Penis 

 short, corneous, composed of two lateral portions. Female anteriorly 

 attenuated ; posteriorly terminating in a strong, thick muscular 

 acetabulum, with a posterior conoidal depression containing a single 

 strong, recurved hook. Anus and generative apertures clo.se together, 

 just anterior to the muscular acetabulum. Ovum elliptical, elongated 

 at the poles. 



The female of this curious genus of nematoid entozoa attaches 

 herself by means of the po.sterior hook to the mucous membrane of 

 the intestinal canal of the animal it infests, while the male clings to the 

 female by winding the posterior part of its body spirally around the 

 posterior part of the latter, retaining itself in that po.sition through 

 the aid of the numerous tubercles upon its ventral surface, which 

 closely apply themselves to the part of contact in the female. 



I. Synpleda Pendnla, n. s. 



Body faintly reddish-white, cylindroid. Annulations with from 

 12 to 18 transverse mu.scular .striae. Lobes of the head nearly equal. 

 CEsophagus very long, cylindroid, slightly dilated inferiorly. In- 

 testine narrow, cylindrical. 



Male. — Length 4 to 5 lines ; breadth i-6th of a line. Posterior 

 fourth of body forming three turns of a spiral, furnished ventrallj^ 



*vS3niplecta : — i>j;^ together ; Tzlzyio^ I twine. 



