ANNELIDA. 
62 T 
covered with a thick skin, which is pierced by many pore-canals. In the 
course of twenty-four hours a row of short cilia make their appearance j these 
on the third day are greatly increased in size, and at a spot corresponding to 
the foremost region of the body there is a tuft of longer cilia ; at either side 
of this, dark eye-spots were seen ; by the eighth day two pairs of bristle- 
bundles were seen, and the larva resembled that figured by Muller from 
Trieste (vide Krohn & Schneider, 1 . c. p. 498), 
Aphroditidea"^. 
Aphroditidce. 
According to Malmgren (/. c. p. 3), Aphrodita horealiSf J ohilst., is the young 
of A, acuteata, Linn, 
Lcetmonice kinhergi, Baird =X.j^^/corm*5, Kbg. Malmgren, I, d. p. 8. 
PolynoidcB* 
Lcpidonotus cirratu$ v. parasiticus^ Baird=iVycA/a cirrosa^ Mgrn.^ Malm- 
gron, 1. c. p. 6 j L, pharetratus, Johnst. =iEstnoa nodosa (Sars), 
Nychia amondseni, sp. n., Malmgren, 1 . c. p. 6, tab. 1. fig. 4, Greenland. 
Dasylcpis, g. n., Malmgren (/. c. p. 0), for that section of Polynoidee with 
eighteen pairs of elytra; the characters are:— Oorpils elongato-oblongum 
sublineare. Lobus cephalicus antice in prominentias duas conicas productus. 
Antennse sub basi tentaculi affixse. Elytra paria 18, totum dorsum imbri- 
catim tegentia. Setsc rami superioris spiniilis minimis in confertis seriebus 
transversalibus dispositis aspera?, crassiores quam setse rami inferioris. H 00 
infra apicem integrum curvatum seriatim transverse spinulosae. Cirri duo 
anales sub ano. D. asperrima (Sars) = Lcpidonotus pharetratUs^ Baird (nott 
Johnstori). 
Lagisca, Mgrn., vide Zool. Record, 1865, p. 724. The characters are 
amended as follows (Malmgren, 1. c. p. 7 :) — Corpus elongato-oblongum pos- 
tice attenuatum. Lobus cephalicus antice in prominentias duas conicas pro- 
ductus. Antennse sub basi tentaculi affixae. Oculi quatuor, duo antici late- 
rales ab apice prominentiarum longe remoti vix ante medium lobi cephalicij 
duo postici in vertice ad basin lobi cephalici siti. Elytra paria 15, in seg- 
mentis pedibus instructis 1, 3, 4, 6, 8 ...... 22, 25, 28, 31, obvia, totum 
dorsum, segmentis ultimis (c. x.) scepe exceptis, obtegentia. Setae rarni supe- 
rioris apicem versus spinulis miqimis, in seriebus transversalibus confertis 
dispositis, asperae. Setae rami inferioris his tonuiores et plerumque multo 
longiores, rare in segmentis posticis etiam breviores, infra apicem integrum 
obsolete bidentatum vel interdum conspicue bidentatum spinulosae. Cirri 
duo analeS sub ano. L. rarispina (Sars) ; X. propinqua, sp. n., Mgm. 1. c. p. 0, 
tab. 1. fig. 3, Bahusia, 
* It is still a matter of some difficulty to arrange the Annelida Polychaeta ; 
and opinions differ very considerably, not only as to the sequence of the 
orders and families, but even as to whether certain sections should be called 
orders or subfamilies. Under these circumstances, it has been thought ad- 
visable to follow the classi Ileal ion given in Quatrefnges’s ^Ilistoire des Annd- 
lides et G(iphyriens.’ It will be recollected that this has been done simply 
to facilitate reference, and by no means as implying a belief in the correct- 
ness of the views expressed in that work. In one or two cases even this clas- 
sification has, as a matter of necessity, been departed from, as in the case of 
the family of Sternaspidse.— E. P. W. 
