EUNOA TKITONI. 



297 



Body. — Convex dorsally, flattened ventrally, slightly tapered anteriorly, and more 

 gradually posteriorly. Bristled segments about 40. The bases of the dorsal cirri show 

 an expansion. The markings on the dorsum correspond with those of allied species. 

 The segmental (nephridial) papillae are visible on the sixth foot, and are directed 

 upwards between the feet. They continue almost to the posterior end. 



The scales are more nearly allied to those of E. nodosa than to those of E. cerstedi, being 

 somewhat reniform in outline, densely fringed on the outer or narrower edge with loner 

 cilia ending in a probe-point (Fig. 21). Posteriorly these gradually diminish and run into 



Fig. 22. 



Fig. 21. 



Q • 



Outer edge of scale of JEunoa tritoni. 



JEunoa tritoni.— Dorsal bristle to right and ventral to left. 



the short cilia which occur at intervals along this border to the inner edge. Besides the 

 cilia a series of eight or nine capstan-shaped tubercles, with a minutely nodular 

 surface, project from the posterior border, besides others within it, and, in addition, 

 two or sometimes three much larger tubercles of a similar shape are ranged a little 

 within the posterior border. These larger tubercles are thus fewer in number 

 and proportionally larger than in E. nodosa. Just within the densely ciliated outer 

 border are a series of elongated papillae, with trifid or multifid tips (Fig. 21). They 



