o/Arcnicola piscatornni. 113 



f)f tlic (lovclopmont of tlic Biancliiferous Annolidcs, I add a 

 tabular view, in i'aiiiilies, genera and species, of all those worms 

 whose earlier states have hitherto been observed, whether singly 

 or in complete series. The systematic arrangement is that of 

 Grnbe, in his ' Familicn der x\nneliden/ It shows how extremely 

 small, in comparison with the number of known species, is 

 that of the observations of their developmental forms, a number 

 however which would certainly be doubled, if we were acquainted 

 with the parentage of all the larvae hitherto observed. 



Talndar View of those Branchiferons Annelides of ivhich the Yowiy 



States have already been observed. 

 Rapacia. 



Ai'UKODiTEA . . Polynoe cirrata Sars, Wicgm. Arch. 1845, i. 



p. 11. 



Polynoe M. Miiller, Arch. 1851, p.323: 



Dcsor, Bost. Journ. vi. p. 12. 



EcNiCEA Eunice sanguinea .... Koch, Ncue Dcnkschr. der 



scbweiz. GescUsch. viii. 

 Lycoridea .. Nereis diver sicolnr .. Schultze, in this paper. 



Nereis, sp. dub Milne-Edwards, Annales dos 



Sci. Nat. 3 ser. iii. ]). U)<> ; 

 Bnsch, Beobachtnngcn, &c. 

 p. ()i). tab. I), figs. 11, 12. 



Pnvi.LODocEA. Pkyllodoce, sp M. Miiller, Arch. 1855, p. 17. 



note. 

 Sv 1-1,1 DEA .... Syllis pulligera .... Krohn, Wiegm. Arch. 1852, i. 



p. 251. 

 Aidolytus prolifer. . . . Krohn, Wiegm. Arch. 1822, i. 

 p. fi6 ; Miiller, Arch. 1865, 

 p. 489. 

 {Sacconcreis helgolan- M. Miiller, Miill. Arch. 1855, 

 dica. p. 13 ; Schultzc, in this 



paper. 

 Sacconereis Schultzli.) J. Miiller, Ueber den allgeni. 

 Plan, in der Entwickelnng 

 der Eehinodermen, p. 7,note. 

 Cystonereis Edwardsii. Kolliker, in Koch, Neue 

 Dcnkschr. der schweiz. 

 Gesellsch. viii. p. 21. 

 Exogene naidina .... Oersted, Wiegm. Arch. 1845, 



p. 20. 

 Exogene Oerstedii and KciUiker, Neue Denkschr. der 

 cirrata. schweiz. Gesellsch. viii. pp. 



15, 22. 



AniciEA Nerine (Malacoceros) Lcuckait*, Wiegm. Arch. 18.55, 



longirostris . i-PI'- ''«^ & 77 ; Busch, Beob. 



tab. 8. figs. 1-4. 

 Leucodore ciliata . . . . Oersted, Annul. Dan. Consp. 

 p. 39. tab. (). fig. '.)G{l)i 

 Freyand Leuckart, Beitriige, 

 &c. p. 98. tab. 1. fig. 19(?). 



* See Annals, 2nd Scries. .\vi. p. 259. 

 Ann. &; Mar;. N. /list. Scr. 2. Vol. xviii. 8 



