AA REVIEW. 
Sacconereis helgolandlica.—J. Miiller, ‘ Miiller’s Archiv,’ 
1855, p. 18. Mac Schultze, loc. cit., fig. 10. 
Sacconereis Schultzii—J. Miiller, loc. cit., p. 7. 
Cystonereis Edwardsii—Kolliker (Koch, loc. cit.). 
Exogone naidina.—Cirsted, ‘ Wiegm. Archiv,’ 1845, p. 20. 
Odontosyllis.—Claparéde, loc. cit., p. 81. 
AriciEA.— Nerine  longirostris. — Leuckart, ‘ Wiegm. 
Archiv,’ 1855, i, pp. 63 and 77. Busch, ‘ Beobacht. iiber 
Anat. und Entwick. ein Wirb. Th.,’ pl. 8. 
Leucodore ciliata—Qirsted, ‘Ann. Dan. Conspectus,’ 
p- 39, pl. 6. Claparéde, loc. cit., p. 69, pls. 7,8. “ Annélides 
voisines de la précédente,”’ Claparéde, ibid. 
Magelona papillicornis—Claparéde, loc. cit., p. 74. 
TreLeruHusa.—Arenicola piscatorum.—Max Schultze, ‘ Ab- 
handl. naturforsk. Gesellsch. zu Halle,’ vol. v, p. 215. 
TEREBELLACEA.— Terebella nebulosa.— Milne-Edwards, 
‘ Ann. des Sc. Nat.,’ 3rd ser., vol. ili, p. 145 (1845). 
Terebella conchilega.—Claparéde, loc. cit., p. 63. 
HerMELLACEA.—Hermella alveolata— Quatrefages, ‘ Ann. 
des Sc. Nat.,’ 3rd ser.,-vol. x, 1848, p. 153. 
SERPULACEA.—Protula.—Milne-Edwards, loc. cit., p. 161. 
Fabricia.—O. Schmidt, ‘ N. Beitriige zur Naturg.,’ p. 27. 
Spirorbis spirillum.—Pagenstecher, ‘ Zeitschr. fur wiss. 
Zool.,’ 1862, vol. xu, p. 486. 
CumtToPrerREA. — Chetopterus.— J. Miiller, ‘ Miiller’s 
Archiv,’ 1846, p. 101. Busch., ‘ Miiller’s Archiv,’ 1847, 
p- 187; and ‘ Beobacht.,’? 1851, p. 59. Max Miiller, ‘ Obs. 
Anat. de Verm. quib. mar.,’ p. 25, pl. 3; and ‘ Miller’s 
Archiv,’ 1855, p. 1. 
We must pass over the pages on the fissiparous re- 
production of Annelida, and their growth and death, in 
which, as elsewhere, the author dwells chiefly on his own 
researches published from time to time in the ‘ Annales des 
Sciences Naturelles;? and, indeed, the whole chapter on 
anatomy and physiology is little more than a résumé of those 
researches, which, though valuable and good, still are not the 
whole of what has been done. The four plates illustrative 
of this part of the work are very good for small plates, but 
are not quite so numerous as might be wished, nor do they 
equal the drawings of Ehlers in execution. 
The third chapter is entitled ‘‘ Natural History,” and 
deals with the habits of Annelida in freedom and captivity. 
There are many interesting observations in this short chapter. 
The fourth chapter is devoted to geographical distribution. 
‘The author observes that but little is known of the distri- 
bution in the world of Annelids; but that from the researches 
