MALDANE SARSL 343 



end, with broad bands of deep red surrounding the body at intervals. The authors 

 thought it identical with Malmgren's Axiothea catenata. 



Sub-Family Maldanin^, Arwidsson. 

 Genus CX XVIII.— Maldane, Grube, 1860. 



Glymenia, CErsted ; Petaloproctus, De Quatrefages. 



Cephalic plate somewhat elongated, more or less narrowed anteriorly, or pointed, and 

 with a lateral border. The cephalic keel is long and high, extending to the posterior 

 edge. Nuchal organ rather short, straight or slightly curved, not recurved anteriorly, 

 the other end with no deep groove. Posterior plate small, smooth or with marked teeth 

 (processes) or with notches. The fifth bristled segment with an upper half almond-shaped 

 gland from the anterior to the posterior end of the segment. Dorsal bristles capillary, 

 either smooth or serrated distally. Ventral with rostrate hooks having a long manubrium 

 and in a single series. 



Claparede (1868) admits with hesitation this genus of Grube's, as revised by Malmgren. 

 As established by Grube it represented an abnormal form with reversed bristles and 

 hooks, the former being ventral, and the latter dorsal. But Malmgren supposes that 

 Grube was deceived by a prolapsus ani, so that he mistook the tail for the head. 

 Claparede, however, defends Grube, who described the dorsal trunk as contracting from 

 behind forward, and he refers to the nervous system, which could not have been on the 

 dorsum. 



1. Maldane Saesi, Malmgren, 1867. Plate CX, figs. 8 and Sc— bristles and hook; Plate 

 CXI, figs. 8 and 8a — head and tail; Plate CIX, fig. 16— spinous bristle. 



Specific Characters. — Border of the head-plate smooth. Two posterior segments 

 without bristles. Ventral border of the posterior plate smooth; lateral notches 

 moderate; dorsal border minutely crenulate. The posterior ventral plate of the sixth 

 bristled segment is less in breadth than in height. The glandular thickening of the 

 ventral surface extends backward to the sixth segment, and thereafter occurs at the 

 setigerous elevations. A lateral belt of striated glandular tissue extends from the sixth 

 segment to the last bristled segment. Dark brown pigment symmetrically arranged 

 anteriorly ; darkest fleck behind each nuchal organ ; a dark fleck in front and behind the 

 keel (Malmgren) ; length 70 to 85 mm., breadth 3 to 4 mm. Winged bristles, with 

 curved, tapering tips in front, and similar bristles with narrow wings and long, taperino- 

 tips behind. The tips gradually elongate in proceeding backward, becoming hair-like 

 with symmetrical spikes. Hooks with a broad head, a sharp great fang, with two 

 spines in lateral view on the crown above, and the tuft of bristles from the throat 

 below is only a little longer than the great fang. Cylindrical tube of thin, but tough, 



