Benham. — Oliyochoeta from the Southern Islands. 297 



cular coat of the body-wall, and spread out fan-wise below the 

 epidermis. 



Remarks. — This species appears to be nearly allied to L. 

 maritimus, Ude,* from which, however, it differs in the following 

 points : It is more than twice the length, and contains nearly 

 twice as many segments ; the excess of chaetae in the dorsal 

 bundle of some of the anterior segments, and the fewer chaetae 

 in the bundle of the hinder segments ; the less extent of the 

 clitellum ; the relatively smaller size of the sperm-funnel, which 

 in L. maritimus is three or four times longer than broad (the 

 form of the spermatheca appears to differ, for Ude makes no 

 mention of the narrow oesophageal duct, saying that the " beutel- 

 formige" sac communicates by its narrow end with the gut); 

 the relatively great size of the subneural glands in the present 

 species ; and the presence of a third small one in the 16th 

 segment. 



EXPLANATION OF PLATE XIV. 



Fig. 1. A spermatheca of Rhododrilus kennadecensis. 



Fig. 2. A spermatheca of Rh. cockayui. 



Fig. 3. A spermatheca of Rh. leptomerus. 



Fig. 4. Penial chaeta of Rh. kermgdecensis, seen from above ( x 350). 



Fig. 5. The same, side view, showing spoon-like tip ( x 350). 



Fig. G. Penial chaeta of Rh. cockayui ( x 350). 



Fig. 7. Penial chaeta of Rh. leptomerus ( x 350). 



Fig. 8. Lumbricillus macquariensis. A transverse section of a subneural 



gland (camera x 175). a, nerve-cord ; c, circular muscular coat ; 



e, epidermis ; I, longitudinal muscular coat. 

 Fig. 9. Marionina antipodum. The aperture of the sperm-duct, from a 



transverse section ( X 175, camera), d, sperm-duct ; gl, sper- 



miducal gland, opening into terminal apparatus ; p, pore ; 



I, longitudinal coat of muscles consisting of several fibres in 



depth. 

 Fig. 10. Marionina antipodum. The spermatheca. gl, gland at its exit ; 



a, oesophageal opening ; p, external pore. 

 Fig. 11. Lumbricillus macquariensis. A spermatheca, with rosette of glands 



at the pore, o, oesophageal opening. 

 Fi<*. 12. The same. Base of spermatheca (from a transverse section), 



showinff very short muscular duct, and the glands around the 



pore. 

 Fig. 13. The same. The male apparatus for an entire individual, d, duct; 



/, funnel ; p, pore ; s, septum. 



* Ude, " Enchytraeiden," Hamb. Magalhaen, Sammelr., 1896, p. 6. 



