ENCHYTR^EID^E 



FIG. 73. Fridericia fucksi. 



six somites are deeply multi-ringed, 

 fectly smooth, so smooth 

 that no distinction is seen 

 between the respective so- 

 mites. The last few so- 

 mites of the tail are, how- 

 ever, separated by distinct 

 grooves. The nearest re- 

 lated species is P. sonorce, 

 but this latter species has 

 free spermathecae, while 

 in JF. fuchsi the sperma- 

 thecae open into the intes- 

 tine. 



Chylus cells (pi. XVH, 

 fig. 2 ) .These cells , which 

 occur in three somites 

 posterior to clitellum, are 

 long and narrow. The 

 inner duct is digitate at 

 the base. The chylus cells 



broad and shallow epithelial 

 cells. Spermatheca with a sac- 

 like apical pouch, without di- 

 verticles ; connects with the in- 

 testine, the stem of the sperma- 

 theca much twisted. Penial 

 bulb small, with cells opening 

 both into the sperm-duct and 

 at the base of the papilla. 

 Lymphocytes round, disc-like. 

 Nephridia with a long and nar- 

 row anteseptal. Color yellow- 

 ish-white. 



Locality. Santa Cruz 

 Mountains near Boulder Creek, 

 on ranch of Mr. Koester, Prof. 

 Charles Fuchs. 



Characteristics. Exteriorly 

 the species is readily distin- 

 guished. The anterior four to 

 while all those posterior are per- 



FiO. 74. Fridericia fucksi. 



