St. Andreios Marine Laboratory . 105 



stated that it was allied to Grube's Chjmene hiopygos, from 

 Cherso*, though of course this diagnosis rested on the cha- 

 racters of the anterior region only. The acquisition of a 

 perfect specimen, however, shows that Grube's species differs 

 in the number of bristled segments, which are twenty-three, 

 as well as in the form of the anal cup and the preanal seg- 

 ments. The anal cup, moreover, follows the last bristled 

 segment, and thus materially diverges from the condition in 

 Glymene ehiensis. It was subsequently procured in the 

 ' Porcupine ' expedition of 1870, at 305 fathoms in the 

 Atlantic, but in this specimen also the posterior region was 

 absent. 



Th^el's Praxilla polaris f has the same number of bristled 

 segments, and the two or three last are devoid of these organs ; 

 but the otherwise smooth anal funnel has a small ventral 

 cirrus, and the cephalic segment of course wholly differs. 

 Hansen's Clymene Koreyii\^ another form with a smooth 

 anal funnel, has only eighteen bristled segments, and the 

 cephalic plate is like that in Maldane. The Glymene cirrata 

 of Ehlers§ has an anal plate with four long cirri, though the 

 margin is otherwise smooth, and the cephalic lobe has broad 

 flat lateral plates. 



The anal plate of Nicomache Mclntoshii of Marenzeller || 

 is smooth, but it is flattened and otherwise quite different 

 from the condition in the present species. 



The examination of a complete specimen (Plate VIII. fig. 1) 

 in spirit, courteously sent by Mr. Hornell, of Sinel's Labora- 

 tory, Jersey, has enabled me to clear up the ambiguity 

 attached to the species, and more especially to ascertain the 

 character of the anal funnel. 



The cephalic lobe in this example, which Mr. Hornel says 

 was six inches in length, has a dense series of minute brownish 

 eyes in the preparation — visible from the dorsum on each side 

 of the snout (Plate VIII. flg. 2), but disappearing by passing 

 under the pointed tip. They extend on the under surface 

 (Plate VIII. fig. 3) forward to the apex of the snout. In the 

 other two examples no eyes can be seen. The curiously 

 aberrant Branchiomaldane Vincentii of Langerhans, from the 

 Canaries, shows similar groups of eyes on the dorsum of the 



* Archiv f. Naturgesch. 1860, p. 91, Taf. iv. figs. 3, 3 o, 3*5>. 

 t Kongl. Sv. Vet.-Akad. Handl. Bd. xvi. no. 3, p. 58, pi. iv. figs. 52 

 56 (1879). 



X Norwegian N. Atlantic Exped. p. 40, pi. vi. figs. 1-5 (1882). 



§ Flurida-Auneliden, p. 182, Taf. 40. figs. 10-13. 



II " Polychateu d. Angra Petiuena-Bucht," Zool. Jahrbiich, Bd. iii. 



