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 3. Eurythoë parvecarunculata n. sp. PI. X, figs. i — 5. 



Stat. 312. Saleh-bay, north-coast of Sumbawa. Depth 274 M. 1 specimen. 



A slender worm, of about the same breadth over its total length, only somewhat tapering 

 posteriorly, with glossy white bristles; its measures about 14111111. in length, the number of its 

 segments amounting to 50. The rounded cephalic lobe (PI. X, fig. 1) has a large heart-shaped 

 palpar part and is provided with four eyes; upon its posterior border it bears a long unpaired 

 antenna, that reaches the 4 lh segment, when bent backward. Of the paired antennae the anterior 

 are somewhat longer than the posterior ones. There is a small caruncle, only extending over 

 the first segment. The strongly ramified branchiae commence on the third segment; they 

 are most developed in the anterior part of the body, decreasing posteriorly. 



This species is distinguished from its congeners besides by its minute caruncle, by the 

 characteristic shape of the furcated extremity of its neuropodial bristles (PI. X, fig. 2); for their 

 short limb is rather long and measures more than a third of the long one and the last named 

 limb is not curved, but straight or somewhat bent backward and provided with a couple of 

 faint denticulations along its external border. Only in the anterior segments they are associated 

 with a couple of slender elongated setae, with a spur-like short limb and a coarsely denticulated 

 long one ; in the posterior part of the body these setae are wanting. The spines (PI. X, fig. 3) 

 have au elongated oval extremity. The large fan-shaped notopodial fascicle contains, besides 

 some short harpoon-shaped bristles with faint denticulations (PI. X, fig. 4), a great number of 

 slender, elongated bifurcated setae (PI. X, fig. 5) with a short limb, that is longer than usually 

 in this kind of bristles and with a long limb, coarsely denticulated along its internal border; 

 moreover there are some of these slender bristles, in which the short limb lias the shape of a 

 mere spur. The ventral cirrus of the parapodia is short and conical, the dorsal one is about 

 as long as half the length of the dorsal setae. 



4. Eurythoë dubia n. sp. PI. VII, fig. i; PI. X, figs. 6 — 10. 

 Stat. 272. Dobo, Aru-islands, pelagic. 1 specimen, female. 



Length 255 mm.; the number of its segments about 135. 



This worm, much more slender than the well-known species of Eurythoë, has a characteristic 

 appearance by its glossy, dark-yelfow bristles, the ventral of which project much farther outward 

 than the dorsal ones. The body is rectangular on transverse section, much broader than high, 

 somewhat flattened; its colour is dark brown, with a violet hue. The dorsal side is faintly 

 rugous; there is a median groove on the ventral side and the nephridial openings are very obvious. 



The cephalic lobe (PI. X, fig. 6) is heart-shaped with the anterior pair of eyes lying 

 hidden under its frontal margin ; the caruncle is small, flexuous, arising from the posterior half 

 of the head and extending only to the middle of the second segment, somewhat as in Eurythoë 

 californica Johns. v ). The unpaired antenna, situated between the posterior pair of eyes, does not 

 extend to the end of the caruncle; the paired antennae, that are nearly equal in length, are 

 somewhat shorter. 



1) A prelimin. account of the Marine Annelids of the Pacific-Coast, PI. V, fig. 8. 



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