EXPLANATION OF PLATE XIX. 
Atopos (Parapodangia) gravelyt, n. sp. 
Fic. 27.—Male genital organs; 1, flagellum; 2, penis; 3, simro- 
thian gland (right). 
28.—Diagrammatic enlarged drawing of the hermophrodite 
gland of the smaller specimen. a, Albumen gland; 
b, acini; c, coiled mass of oviduct; d, spermduct. 
+) 
,, 29.—Nervous system ; a, nat. size; 6, enlarged drawing. 
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