3i 



mushroom-shaped, with a short stalk and a round distal part with faintly folded border (PI. IX, 

 fig. 12); they somewhat resemble the anal appendages of Nofopygos, though they are sufficiently 

 distinguished from them. 



This worm, though in general configuration, in the shape of its bristles and the presence 

 of paired anal cirri approaching Xotopygos and Chloeia, differs by the structure of its caruncle 

 that lacks the crest and folds; moreover the branchiae are much less developed than in the 

 last-named genera. By the absence of eyes and the strong development of its bristles it agrees 

 with the other deep-sea Amphinomidae, Chloenea Mc Int. and Bathychloeia Horst. 



Nov. Genus Parachloeia. 



Body oblong oval, like in Sangiria. A long and narrow plaited caruncle, with a crenulated 

 horizontal plate. Eyes present. Branchiae small, only consisting of a few filaments, the first pair 

 of them on the fifth segment. Branchial cirri present. Bristles bifurcated. Anal cirri paired. Nearly 

 alliecl to Sangiria, but sufficiently distinguished by the shape of its caruncle and the presence 

 of eyes. 



1. Parachloeia mariiiorata n. sp. PI. IX, figs. 13 — 16. 



Stat. 43. Anchorage off Pulu Sarassa, Postillon-islands. Depth 36 M. 1 specimen. 

 Stat. 78. Lumu-Lumu-shoal, Borneo-bank. Depth 34 M. 1 specimen. 



A minute worm, measuring only 7 to S mm. in length, with 18 to 22 segments; its 

 bodv, oblong oval like in Cliloeia and Notopygos, has the back marmorated, of a violet colour 

 with pale spots, whereas the gills are black at their base. The bristles are rather long, especially 

 the dorsal ones, yellowish. 



The cephalic lobe (PI. IX, fig. 1 3) is provided with two pairs of jet-black eyes, the 

 anterior of which are the largest. Its palpar region (PI. IX, fig. 14) is heart-shaped, with a 

 longitudinal median groove, and terminates anteriorly in a narrow roundish plate, that is blackish 

 axcept its margin. The caruncle is a long and narrow plaited crest, with a crenulated horizontal 

 plate, extending to the 5 th segment. In front of it an unpaired antenna arises, that is rather short 

 and measures only a sixth of the length of the caruncle. The paired antennae are much longer. 



The branchial tufts are very small, consisting only of a few short filaments; they 

 commence on the 5 th segment. The dorsal cirri, consisting of a long cylindrical basal joint and 

 a distal part, are not quite as long as the dorsal bristles. There are also slender branchial 

 cirri, extending to the dorsal median line, like in the deep-sea species of Chloenea. 



The bristles are all bifurcated; those of the neuropodial fascicle (PI. IX, fig-. 16) much 

 resemble the bristles of Sangiria and have a long limb, thrice as long as the short one, somewhat 

 curved outward beyond the fork and furnished with two faint denticulations. The dorsal setae 

 (PI. IX, fig. 15) have about the same shape, but are more slender; their longest limb, about 

 four times longer than the short one, is smooth. 



There are two short cylindrical anal cirri, with a dark club-shaped extremity. 



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