TELAKE. 345 



the Compt. rendus, 27 March, 1865, as Hemipodia. Quatrefages's name was 

 not properly established in this place, however, since he mentions no species 

 in connection with it and does not give a Latin form. Ehlers (Nach. K. gesellsch. 

 wiss. Gottingen. Math. phys. klasse, 1897, p. 81) also follows Kinberg in using 

 Hemipodia. Quatrefages himself, however, in his Hist. nat. anneles gives the 

 usual form, Hemipodus, in the place where the genus is first really established, 

 unless perchance Kinberg's paper appeared before the Anneles, in which case 

 Hemipodia must be used. 



Telake, gen. nov. 



Body of medium size, cylindrical, and slender, tapered at the ends. 



Prostomium long and pointed, the length much exceeding the breadth. 

 Bearing at the tip four small tubercles. Eyes none in the adult. 



Metastomial somites all two-ringed. 



Parapodia all biramous, but of two types as regards size and details of 

 development, and particularly as regards the setae, an anterior group bearing 

 composite and limbate setae in neuropodium and notopodium respectively, 

 and a posterior larger group, bearing only simple non-limbate setae. Each branch 

 of the parapodium bears a single ligula, presetal in position. 



Branchiae none. Notocirri present, reduced, nodular in form. Ventral 

 cirrus short, conical to narrowly plate-like. 



Genotype. — T. epipolasis, sp. nov. 



This genus is apparently clearly separated in the character of the para- 

 podia and in the form and distribution of the setae. It resembles ordinarj?- 

 forms of Goniada in having two regions of the body sharply marked off by the 

 character of their parapodia and setae; but differs strongly in having the para- 

 podia of the anterior division biramous and in wholly lacking composite setae 

 in the parapodia of the posterior division. It is, however, probably much nearer 

 to Glycera, which genus has a few species (such as G. capitata Oersted, G. con- 

 voluta and G. minuta Czerniawsky) showing epitokous phases in which the 

 individuals swim at the surface. All of these surface-forms were taken at night, 

 as in the case of the present one. The nocturnal habits doubtless account for 

 the rarity of their capture. In the epitokous forms of Glycera there seems to be 

 an appearance of simple setae among the composite neuropodials; but in no 

 case, so far as I can find, is there a division of the body into two regions like 

 those of the Heteronereis phase of the Nereidae and a complete lack in the poste- 

 rior region of all composite setae. In fact, the change from ordinary atokous 



