49 



Liiiiilii'iciiliis (irube. 



Prostoniiuin rouuded. Seta^ cleft. One pair of spermidu- 

 cal pores. Two pairs of oviducal pores. Tliree pairs, or more, 

 of speriiiathecal pores, open laterally on some of somites IX — 

 XVI. Dorsal and ventral vessels connected in posterior part 

 of each somite by a pair of transverse vessels; the dorsal vessel 

 in each somite with one pair of contractile ctucal transverse ap- 

 pendages except in a few anterior somites. Sperm-ducts open 

 into a singleatrinm or jiair of atria provided with protrusible 

 penis. Two pairs of ovaries and of oviducal funnels. Spernia- 

 thecae simple; three pairs or more iu somites posterior to atria. 



Linu/irini/iis nn'i('<j'i/iis (0. F. Miiller). 



In life reddish to dark brown, anteriorly greenish. Pros- 

 tominm rouuded conical, length H times the basal width, with 

 "head" pore at the apex. Spermiducal pores on VIII (excep- 

 tionally on VI I), posterior to ventral setie. Two pairs of 

 oviducal pores, TX/X and X/XI. Spermathecal pores on some 

 of somites IX — XV, sometimes asymmetrically distributed. 

 Brain anteriorly slightly concave, posteriorly with a deep, 

 rounded trilateral incision. Transverse vessels of I — VIII much 

 branched, forming a connected vascular plexus, the following 

 ones simple; contractile co^cal transverse appendages of the 

 dorsal vessel beginning in IX, at hrst short and simple but 

 becoming longer and branched in succeeding somites. One 

 pair of testes and one pair of spermiducal funnels in Vlll. 

 Atria pyriform, one pair in \'II1 i excei)tionally in VII ), or 

 single. Two [lairs of ovaries and of oviducal funnels in IX 

 and X. Spermathecie simple, three i)airs or more in some of 

 somites IX — XV. sometimes asymmetrically distributed. 

 An unpaired copulatoi-y (albumen) gland in IX. ( ? ) Length, 

 40 — SO mm. Diameter, 1 — 1.5 mm. Number of somites, 140 — 

 200, or more. 



