tlic vijiiiaikalilu cliin^iitiuii <jf tlic .■itriuiii m- ^■^^(illllle ; llie lnnu- irli'aclm' Illu^(■lu 

 fi'diii llio ve.siclu ami its strm is allivcd In llic ilmsuiii in tlir inciliau line near 

 tlie caudal eiiil of tlic limly; tlje Aa.s deferens and llie siirrinalln'ca ojicn nearly 





(A. 



/t.v.s. 





K^ 



C^ '1 



^-- 



K^ 





-^/ 



Fi/,. 262. Fi.;. 2U:i. 



Sexl^al organs of < U-on/aiai-ns iiiacnlosHS^ after ilissi^ij iun^ liy Sjjnrnt 

 X 2 (fig. 263), and .Scharfl" (I'ig. 26i). 



a.^', alLianien gland ; at. atrium ; ot. ovotesti^ : ii^.iL o\'ispernialr)dnct ; 

 theca ; 7'.il. vas deferens; 7',.s'. vcjsicula seminali> ; r. ii:Lr.'n,Lnr. 



to^'etlier into tlie distal ex- 

 tremity of the .VTUIUM, whieh 

 is |ii'o](jnL;ed in an attenuate 

 form to an enornH>us lenjith, 

 ami receives the very thin free 

 oviduct much nearer tlie proxi- 

 mal end, where the muscular 

 VESTIBULE is j;reatly hut ir- 

 rej^'ularly enlarged, ami con- 

 nected to the oviiluct hy a 

 iiumher of muscular hhres. 

 Witliin the VAfnN.-v tliere is a 

 curicnis series of tiattened fohls, 

 tlie central part witli pointeil 

 end, i>laced close to tlie genital 

 a[)erture, and A\'hich (Joilwin- 

 Austen thinks may [lossilily he 

 a SARCOIU';luJI and the Innno- 

 logue of tlie dart in tlie llelicida'. 



The MANDllii.i-;, <n- jaw, 

 measures ahout one mill, from 

 side to .side, and is distinctly 

 arcuate from front to rear, 

 lunate in shape, hut Muy wide, 

 withhroadand scarcely rounded 

 ends, solid, dark-brown in color, 

 with about ten broad flat ribs, I'l.,. 267. 



which are confined to the M,ni<lil.lu -.r jaw ..f (7.^,>; 



median part of the jaw, ami 

 absent oi' scarcely discernilde 

 (Ui the side areas, sometimes 

 crenulating the ujiper a,nd 

 sometimes the lower margin 



ifis 21!: 

 c/: eiiiiil 



261. 



!), G.xK 



.>/■ sr 



Vusten 

 eriiia- 



G (after 



a /a,. 



I'h,, 26S. 



. !l/,>M!S to - 



Fh;. 267.- 



X 26 (after 



Fi,;. 26.8. 



the ribs n 



the variation m 

 -Showing tiie denticu 

 :;od\\'in-Au-Sten). 

 -Sliowing denticulati. 



denticulate both the upper and the cutting cil 



ay cxteml 

 ges. 



ml 



sculplui'e, 

 ation of I 



,n of lowe- 



■ acloss 



(be j; 



12. 



iw and 



