NKW MAI.I.tJJ'JlAtiA . 183 



narrow, backwurd-running part of tlio duct. Thi.s pro- 

 ceeds to the penis, and in its course makes a bend to tlie 

 left baek of the seminal vesicle, then, after reaching 

 the middle line of the body, goes straigiit to the exte- 

 rior. The upper enlarged [lart of the duct is strongly 

 muscular. 



Nitzsch figures the male organs of two Tschno- 

 ceran species, Goniocotes compar and Liptiwus jejuavK. 

 In the former the pear-sliaped testes abut closely upon 

 each other by their largo ends, and from between them 

 tlie vas deferens passes by a convoluted course to the 

 upper end of a posterior enlarged part of the ejaculatory 

 duct. The latter is long and rather slender for most of 

 its length. It makes a large bend forward as in the 

 other species described, the inner arm of the loop like- 

 wise is considerably dilated, but a narrow neck inter- 

 venes between this part and the vesicula. The latter is 

 ])artiallv divided anteriorly into two lobes. 



Kramer (1SG9) describes very fully the male reproduc- 

 tive organs of Li/ievrus Jejvniis. According to him the 

 two testes on each side are acorn-shaped, having their 

 pointed ends terminating in a fine-branched fiber. 

 They are formed by a continuation of the outer homo- 

 geneous covering ot the testes. Just where they leave 

 the testes they contain three or four nucleated cells 

 beyond which they become solid threads. Each divides 



ft. w 



into two main branches which are attached to the dor- 

 sal tube, but also by side branches to the Malpighian 

 vessels antl to other organs, so that they are simply 

 members of the connective fibers that bind all the 

 organs together. The slender vas deferens arises from 

 the united larger ends of the testes. It consists of an 

 outer structureless covering and an inner cellular epi- 

 thelium. He describes the vesicula seminalis as an 



