678 MR J. T. CUNNINGHAM AND MR G. A. RAMAGE ON THE 



sinus round the posteriorly directed limb of the loop passes backwards, and the 

 successive waves can be seen passing backwards in the living animal, through 

 the transparent epidermis. The heart has similar structure and relations to 

 those described in Trophonia. Claparede mentions the tubular excretory 

 glands at the side of the pharynx, without recognising their homology with 

 nephridia. They have the same structure as those of Trophonia (PI. XLVI. 

 fig. 40). 



Fam. Maldanid^e. 



Genus Nicomache. 



This genus was first defined by Malmgren, in his Nordiska Hafs-Annulater, 

 as follows : — Body subcylindrical, posteriorly somewhat attenuated, of 26 

 segments, 22 of which are setigerous, while the two very short praeanal somites 

 are naked. Cephalic lobe coalesced with the naked buccal somite, oval, 

 convex, inclined, and without a projecting border. Superior setce capillary ; 

 some thicker, smooth, bordered, with the apex long and attenuated ; 

 others thinner, shorter, not bordered, smooth inferiorly, superiorly beset with 

 very minute spines, adpressed in two series. Inferior setce: in the 

 three anterior setigerous somites, there is only one kind of seta, conical in 

 form ; in the rest, many minute uncini in a single series, with a tridentate 

 beak at the vertex, with a fascicle of hairs bent over it beneath the beak. 

 Anal segment infundubiliform, the margin surrounded by short cirri. Anus 

 terminal in the bottom of the funnel. 



Nicomache lumbricalis, Malmgren, Fabr. 



Sabella lumbricalis, Fabricius, Fauna Gronl., p. 374, n. 369. 



Clymene lumbricalis, Sars, Fauna littor. Norvegioe, ii. p. 16, Tab. ii. f. 23-26; 



Christiania Vid. Selsk. Forh., 1861, p. 92. 

 Clymene borealis, Johnston, Dalyell, Pow. Creat., ii. 255, pi. xxxv. f. 5. 



Commonly found among Laminarian roots, also occasionally under stones. 



Specific Characters the same as those of the genus. Colour pinkish. The 

 dorsal surface of the first few somites is abundantly spotted with red and 

 white (PI. XLVII. fig. 41). 



Genus Axiothea, Malmgren. 



First defined by Malmgren, in his Nordiska Hafs-Annulater, as follows : — 

 Body subcylindrical, of 24 somites, 18 of which are setigerous, and the 4 prse- 

 anal naked. Cephalic lobe coalesced with the naked first somite, inclined 

 with a projecting border, and anteriorly projecting into a short process. 

 Superior setae capillary ; some longer, smooth and bordered ; others 

 shorter and thinner, finely pinnate on each side towards the tip. Inferior 



