THE ANNALS 



AXD 



MAGAZINE OF NATURAL HISTORY. 



[THIRD SERIES.] 



" per litora spargite museum, 



Naiades, et cireClm vitreos considite foiites : 

 Pollice virgineo teueros luc caipite flores : 

 Floribus ct pictum, divs, replete canistrum. 

 At vos, o Nympha? Craterides, ite sub undas ; 

 Ite, recurvalo variata corallia trunco 

 Vellite musoosis e rupibus, et milii conchas 

 Ferte, Deae pelagi, et pingui conchylia succo." 



N, Parthenii Giannettasii Ed. I. 



No. 115. JULY 1867. 



I. — On the Annelid Genus Spliferodoruni^ (Ersted, and a new Ee- 

 2Jresentatwe of it, S. Claparcdii. By Dr. IIichard Greeff*. 



[Piute I.] 



Under the name of Sphcerodorum, CErsted, in ISil't, founded 

 a new genus of Annelids^ characterized by the spherical form 

 of the dorsal cirri, and by numerous papilla standing on the 

 fore part of the head. This was afterwards described by John- 

 ston J under the name of PoUicita [peripatus], and lately 

 more carefully by Claparede §, and, with especial reference to 

 the structure of the characteristic globular dorsal cirri, by Kol- 

 liker \\. 



During a short residence in Dieppe last year, I found in the 

 oyster-basin of that place a small Annelid which showed a near 

 relationship to the genus in question, but at the same time 

 differed from it in several points, and which, moreover, in other 

 respects seems to me to present some very interesting pecu- 



* Translated from Wiegmann's Arcliiv, 186(5, pp. 338-351, by W. S. 

 Dallas, F.L.S., &c. 



t "Zui- Classification der Annulaten," Wiegmann's Archiv, 1844,p. 108. 



X Annals & Magazine of Natural History, vol. xvi. ]). 5, pi. 2. figs. l-f». 



§ ' Beobacbtungen liber Anatomic und Eutwickelungsgescbichte wir- 

 belloser Tbiere,' Leipzig, 1863, p. 5, taf. 11. figs. 8-18. 



II "Kurzer Beiicbt uber einige vergl.-anat. Untersucbungcn," Wiirz- 

 burger natnrwiss. Zeitscbrift; 1864, Band v. p. 240, taf. 6. fig. 1. 



Ann, &; Mar/. N. Hist. Ser. 3. Vol. xx. 1 



