1'AKASlTir WOHMS T.KTPKR AND ATKINSON. 



33 



\v;i.v along us length. These Icnmiscj arr sometimes eont racted. Inn their normal 

 length appears |u lie about tin 1 same as thai of the proboscis. The females arc filled 

 with eggs. Tin- iMMiiial iiilir. as characteristically illustrate! 1 in text-fig. :!. is visible as 

 a rule. 





I _'. Eehinorhynchus debenhami, Leip. and Atk. (I'l. II. fi^-. 14. Text-iio'. 4.) 



Ecliinorhynchus <l-l" nJiami, Leiper and Atkinson. I'mc. /.mil. Sue., I'.il4. p. i'i'.">. 



Male _'!' mm. long. Female 2"Jmm. Sickle shaped. Stout, cylindrical rostellinii witli hooks in 

 ll> linear series of 6 each. Lemnisci hag like, extending hut little behind proboscis. Testes large, 

 Occupying anterior half of body ca\itv. deeplv lolied. Female 

 crowded w itii eggs. 



//".>/. A mimber of verv small but sexuallv 

 mature and egg-bearing Echinorhynchi, of this 

 species, \\ere found in Ti'iiiuifoinnx bemacchii, in 

 ,-i--oeiation with the preceding forms. 



/'itri/xi/f. Male 2' 2 mm. long. Female 2 ' 2 mm. 

 All the specimens are sickle-shaped, the dorsal aspect 

 being convex. The rostellum is cylindrical and 

 relatively stout. It bears twelve linear rows of six 

 spines each. The proboscis ( I'l. 1 1. fig. 14. n] measures 

 0'24mm. in length, and is 0'14mni. in diameter; 

 the portion anterior to rlie attachment of the in- 

 vanination of the body-wall being twice the length 

 of that which protrudes posteriorly into the. body- 

 cavity. The leruuisci (Fig. f4, /, /' ) are bag-like and 

 extend only a slight distance beyond the internal 

 end of the proboscis. In the male there are two 

 large testes (Fig. 14, '/,'/') occupying the anterior 

 half of the body-cavity and reaching the posterior 

 end of the proboscis. The testes are constricted in 

 such a \\ay as to give the impression that there are Fit 

 actually four .separate tesficular masses ; they measure 

 O'l'mni. by O'l mm. There are present in this 

 as in A', rennicki, i-utieular lapels upon the 



protecting the hooks: but they are not nearly so well developed. The eoo- s 

 measure O'Oi!.") mm. in length. Some of the specimens were tilled with cell-masses 

 from which the e'jgs ultimately develop (text-fig. 4.-). 



-\m% 



2 





4. Ei-Jiliim-lii/m-lnix ,i,-l, nlnmii: 

 Female, showing cell-masses (e) 



which eventually form eijgs, five 



in the body-cavity. 



