121 



sinooth, whitish, with the scar of attachment situated somewhat eccentrically and a brownish 

 nerve-ganglion next to it ; they leave the median region of the dorsum barren. The 2°<i segment 

 (PI. XXVI, fig. 6) has a semilunar notopodium, from whose dorsal part two stylodes, different 

 in length, are arising ; its neuropodium is much larger, obtuse conical, with two slender stylodes 

 at the dorsal part of its edge, whereas another 1 ong stylode arises from its posterior side. lts 

 posterior lip has a rather deep incision and bears at its ventral part two short stylodes ; the 

 ventral cirrus is short and dilated, not reaching the distal extremity of the foot. This is a cha- 

 racteristic difference with other Zt'a/^ /ra-species, in which the ventral cirrus of the second 

 segment is always longer than in the succeeding segments and extends beyond the extremity 

 of the foot. To begin with the 20''^ segment a conical (branchial ?) appendix occurs ; this ap- 

 pendix gradually increases in length in the succeeding segments. It does not bear cilia as in 

 other Sigalionidae, and also the ciliated ctenidia of the parapodia are wanting here. In the 

 i2''> segment (PI. XXVI, fig. 7) the cylindrical notopodium, that extends somewhat bej'ond the 

 neuropodium, bears three stylodes, ventrally a long, digitiform one and dorsally two shorter 

 ones ; the neuropodium is much higher and is provided in its dorsal part with several club- 

 shaped stylodes, containing large transparent cells, while ventrally only a single short stylode 

 occurs. The ventral cirrus does not reach beyond half the length of the foot. The bristles 

 have the usual shape ; however the neuropodial fascicle does not contain spirally-whorled brist- 

 les. In the succeeding segments the number of stylodes increases as well in the dorsal as in 

 the ventral lobe of the feet and also the branchial appendix and the elytrophore grow longer. 



7. Leanira sp. PI. XXVI, fig. 8. 



Stat. 33. Bay of Pidjot, East coast of Lombok. Depth up to 22 M. i specimen. 



At the above-named Station an anterior fragment of a Leauira-s^&óm&w was collected, 

 that, though agreeing with L. sibogac in the large dimension of the antennal ctenidia, differs 

 from this species in several other characters. The head is rounded, nearly as long as broad, with 

 a shallow median groove, from which the basal joint of the tentacle arises, that is provided 

 on each side with a large, ear-shaped ctenidium, hiding the anterior pair of eyes, the posterior 

 pair being visible behind the base of the tentacle. The tentacle has a long distal part, that 

 has about four-times the length of the head, and extends somewhat beyond the extremity of 

 the dorsal tentacular cirrus ; the ventral tentacular cirrus is much shorter, measuring about 

 a third of the length of the dorsal one. The palps are rather long ; bent backward they reach 

 the 10"^ segment. The first branchial appendix occurs on the third segment. The scales are 

 heart-shaped, granulated, with the scar of attachment situated nearly in the centre. A typical 

 foot (2 2"'') has a cylindrical notopodium, that bears at the extremity of its ventral border a 

 rather long, digitiform stylode, whereas its posterior lip is provided with some short, blunt, 

 conical stylodes ; the neuropodium has an obtuse triangular border and bears superiorly four 

 cylindrical stylodes, whereas inferiorly there occurs a long and a short one. The dorsal part 

 of the neuropodial fascicle is provided with a couple of simple bristles, whorled beneath the tip. 



77 



