75 



14- Lepidonotus sp. PI. XVII, figs. lo and ii. 



Stat. 99. 6°7'.S Lat. N., 120° 26' Long. E. Anchoiage off North Ubian. Depth 16^23 M. i 

 incomplete specimen. 



A worm, broken in two fragments (anterior and posterior one), too incomplete for a 

 satisfactory description and recognition. The head is elongate, with a pair of large eyes on 

 each side in its posterior half; the lateral antennae and the tentacle are absent, the palps are 

 stout, thrice as long as the head, with a filiform tip. The elytra (PI. XVII, fig. 11) are large, 

 whitish, overlapping each other in the median dorsal line; they are faintly reniform, areolate, 

 with the scar of attachment situated somewhat eccentrically and with the border and surface 

 smooth, except along the concave side, where a band of tubercles occurs. The parapodia have 

 the ventral lobe much stronger developed than the dorsal one; the tip of the neuropodial bristles 

 (PI. XVII, fig. 10) is faintly curved, smooth without secondary process, whereas the subterminal 

 dilated part is provided with half a dozen of laciniate fringes. The dorsal cirrus is nearly as 

 long as the neuropodial fascicle ; the ventral cirrus short, half as long as the ventral lobe. 



In its habit it shows some resemblance with Hariiiotho'c pallida Ehl. 



Genus Thormora Baird '). 



This genus difters from Lepidonotus by its notopodial fascicle, consisting of two kinds 

 of setae : a ventral group of slender, smooth, capillary bristles with a sagittate distal end and a 

 dorsal group of ordinary setae ; the first ones are short in the anterior segments, very long 

 in the posterior body-region. 



In accordance with Baird and Marenzeller I think it advisable to separate from Lepi- 

 doiiohis those species {^Thonii. J'itkesii Baird., Lcpid. trissocJiactus Gr. etc.) in which the noto- 

 podial bristle-fascicle contains two kinds of setae. 



I. Thormora trissochacta (Gr.). 



Grube, Annulata Semperiana, p. 25, PI. II, fig. 4. 

 WiLLEV, loc. cit. p. 249. 

 POTTS, loc. cit. p. 331. 



Stat. 99. 6° 7'. 5 Lat. N., 120° 26' Long E. Anchorage off North Ubian, Sulu Archipelago. 



Depth 16 — 23 M. 3 specimens. 

 Stat. 231. Ambon Anchorage. Reef. i specimen. 



Stat. 240. Banda Anchorage. Depth from 9 — 45 M. i young specimen in fragments. 

 Stat. 248. Anchorage off Rumah Lusi, Tiur Island. Reef. 2 specimens. 

 Stat. 315. Anchorage east of Sailus Besar, Paternoster Islands. Depth up to 36 M. i specimen. 



This species is very variable of colour, as already stated by Potts. In the specimen 

 from Ambon the elytra have a dark green pigment, like in those from Tiur Island ; the spe- 

 cimen from Banda has the elytra red-coloured, whereas spots of the same colour occur in the 



i) Journal of the Proceed. of the Linnean Society. Zoology, Vol. \'III, 1865, p. 199. 



3' 



