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The second segment has a globular dorsal lobe, with about a dozen of rather long 

 stylodes, emerging from its semiliinar margin ; its ventral lobe is triangular with a group of 

 four rather long stylodes inserted near its extremity, whereas five shorter ones arise from the 

 dorsal and three ethers from the ventral side. The ventral cirrus of this segment is thick and 

 stout, not quite as long as the foot. 



In the third segment the dorsal cirrus is absent, like as in Z^(?rt;/. .«^7:^(T^; its notopodium 

 is a short cylinder, with five digitiform stylodes along its border. Its neuropodium is much broader, 

 rounded, with two stylodes in the middle of its anterior side, whereas the posterior lip is deeply 

 emarginated ; in the upper part of this lobe eight stylodes occur, while the inferior part bears 

 four of them. The ventral cirrus is short, swollen in its inferior part and slender distally ; it 

 does not reach the extremity of the foot. The neuropodial fascicle contains only pectinate- 

 canaliculate setae. In the lo'^ segment (PI. XXV, fig. 5) the central of. the notopodial stylodes 

 is strongly elongated, extending almost to half the length of the bristles; the neuropodium has 

 some of the stylodes enormously enlarged. In the upper part of the neuropodial fascicle a single 

 bristle with spirally arranged whorls is visible. The first branchial appendix of the elytrophores 

 occurs on the 13''^ segment. In the segments situated more backward (PI. XXV, fig. 6)thenoto- 

 podium shows on its posterior side three short stylodes, whereas the neuropodium at its upper 

 corner only has a single one, that is much longer and slender. The notopodium has the shape of 

 a truncated cone and is furnished in the centre of its distal extremity with a long digitiform 

 stylode, whereas on its anterior border there is a great number of shorter ones (at least a dozen) ; 

 the setae have the usual shape. The neuropodium, at least twice as broad as the notopodium, 

 bears in the upper and inferior part of its anterior side half a dozen of stylodes; its ventral 

 cirrus does not reach quite to the extremity of the foot and bears at its base a short hook- 

 like appendix. There is also a cylindrical stylode medially from the base of the ventral cirrus. 

 The neuropodial fascicle has in its upper part four of the spirally-whorled bristles, first observed 

 by Mc Intosh in Lean. japonica. 



This species is easily distinguished from the preceding one by its much shorter tentacle 

 and the first branchial appendix situated on the 1 3* segment. 



5. Leaiiira Diclanocephala n. sp. PI. XXVI, figs. i — 4. 



Stat. 51. i\Iolo Strait. Depth from 69 to 91 AI. 2 specimens. 



Among the specimens of Lean. sibogae, from the above-named Station, I met with two 

 incomplete individuals of another small species, characterized by the presence of a short ten- 

 tacle like in Lean. Oiiatrefugesi, Lean. hystricis and Lean. zndtiiris; however they cannot be 

 identified with one of these. 



The scales (PI. XXVI, fig. 2) besides those of the iirst pair, which are roundish, have 

 the shape of a paralellogram with rounded corners ; they are finely granular, with a blackish 

 pigment, and have the scar of attachment situated nearlv in the centre and next to it a large 

 nerve-ganglion, from which several nerve-branches radiate. The prostomium (PI. XXVI, fig. i) 

 is semi-circular, darkly pigmented, with two pairs of conspicuous eyes. From the rniddle of its 



75 



