117 



In the specimen of Stat. 313 I observed in the dorsal part of the neuropodial fascicle 

 some simple bristles, spirally whorled beneath the tip. 



2. Lcanii'a tentaculata n. sp. PI. XXIV, figs. 4 and 5. 



Stat. 319. 6° i6'.5 Lat. S., 1 14° 37' Long. E. Java Sea. Depth 82 M. 3 specimens. 

 Stat. 320. 6° 5' Lat. S., 114° 7' Long E. Java Sea. Depth 82 ^L 2 specimens. 



At these Stations five incomplete specimens were dredged, that though much resembling 

 L. sibogae especially by the long tentacle, cannot be identified with this species as they dififer 

 in many other respects. The prostomium (PI. XXIV, fig. 4) is transversely elliptical, and pro- 

 vided with two pairs of eyes. From the median dorsal line of its anterior half the tentacle 

 arises with a short basal joint, that bears on each side a small auriculate ctenidium, that is 

 too minute to hide the large frontal eye. The distal joint of the tentacle is enormously long 

 and bent backward extends to the i 2"^ segment. The lateral antennae, coalesced with the buccal 

 segment, are short and consist of two joints, nearly equal in length. The palps are long and 

 tapering ; they exceed the tentacle somewhat in length. Like in L. sibogae both tentacular cirri 

 differ much in length ; the dorsal one is about half as long as the tentacle, whereas the ventral 

 cirrus measures about a fifth of the dorsal one. The elytra are heart-shaped, with their broa- 

 dest side turned laterally ; their scar of attachment lies somewhat eccentrically and next to it 

 a brownish nerve-ganglion is situated. The elytra nearly reach each other, only behind the 

 lo'*^ segment a narrow median area of the dorsum remains uncovered. The parapodia are 

 especially characterized by the presence in the dorsal part of the neuropodial fascicle of sim p 1 e 

 bristles, that have spirally arranged whorls below the tip. The 2 2<i foot 

 (PI. XXIV, fig. 5) has a cylindrical notopodium with its distal border slightly emarginated ; its 

 ventral lobe bears two slender stylodes, a longer and a shorter one, whereas seven or eight 

 stylodes are inserted on its dorsal part. The neuropodium has a triangular margin and bears in its 

 dorsal part four stylodes, whereas ventrally two only are present. The ventral cirrus, that extends 

 nearly to the distal extremity of the foot, has a dorsal tubercle at a short distance from its 

 base. In the segments, situated more posteriorly, the number of stylodes in the neuropodium 

 increases. The first branchial process occurs on the ii'"^ segment. L. ien fa en /a fa diü'ers from L. 

 sibogae by the presence of simple spirally-whorled bristles in the dorsal part of the neuro- 

 podial fascicle, by its longer tentacle, with a pair of smaller ctenidia and by its .shofter dor- 

 sal tentacular cirri. 



3. Leanii'a javanica n. sp. PI. XXV, figs. i — 4. 



Stat. 5. 7° 46' Lat. S., 1 14° 30'. 5 Long E., oft" North-coast of Java. Depth 330 ]\L i specimen. 



Among the fragments of Lean. coeca I met with the anterior portion of an other smaller 

 Leanira-s^&d&s, that could not be identified with one of the species of this genus, hitherto 

 known. The prostomium (PI. XXV, fig. i) is transversely elliptical without eyes ; from its median 

 dorsal line the tentacle arises, with a short basal joint, that bears two small elliptical ctenidia. 

 The distal part of the tentacle is long and slender, tapering, nearly as long as the dorsal ten- 



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SIKOGA-EXPEDITIE XXIV'/'. l6 



