2 Ech. 
KCHINODKKMATA. 
6. Giard, a. Particulariies de reproduction de certains Echinodermes en 
rapport avec I’ethologie de ces animaux. Bull. Sci. Nord (2) i. 
pp. 296-304. 
Notes the habits of Asterina gibbosa in a natural state, particularly 
with reference to an apparent act of incubation performed by it. The 
creature is apparently an ‘ ethological variety ’ of A. cephea. The so- 
called viviparous Echinodenns are more numerous than is generally sup- 
posed, and hermaphroditism in them is suggested. 
Giard’s note on some monstrosities of Asterias rubens is translated ; 
Ann. N. H. (6) i. pp. 259 & 260. 
7. HiECKEL, E. Die Kometenform der Seesterne und der Generations- 
wechsel der Echinodermen. Z. wiss. Zool. xxx. Suppl. pp. 424-445, 
pi. XX. [Abstract, Jen. Z. Nat. xii. Suppl. pp. vi. & vii. ; Kosmos, 
ii. pp. 358-362 ; Arch. Z. exper. vi. pp. xxxiii.-xxxvii. ; cf. also the 
author’s paper “ Ueber die Individualitiit des Thierkorpers,” Jen. 
Z. Nat. xii. pp. 1-20.] 
8. Hertwig, 0. Beitrage zur Kenntniss der Bildung, Befruchtung und 
Theilung des thierischen Eies. Morph. JB. iv. pp. 156-175, 177-213, 
pis. vi.-xi. ; Arch. Z. exper. vii. pp. i.-vii. 
9. JuLLlEN, J. Description d’un nouveau genre de Stellerides de la 
famille des Ast^riadees. Bull. Soc. Z. Fr. iii. pp. 141-143. 
10. Ludwig, H. (a) Tnchaster elegans ; Z. wiss. Zool. xxxi. pp. 59-67, 
pi. V. [an additional note in Zool. Anz. ii. pp. 19 & 20]. (b) Zur 
Kenntniss der Gattung Brisinga ; ibid. pp. 216-234, pi. xv. (Arch. 
Z. exp^r. vii. pp. xx. & xxi.). (c) Beitrage zur Anatomie der 
Ophiuren ; ibid. pp. 346-394, pis. xxiv.-xxvii. (d) Ueber die 
Genitalorgane der Asterina gibbosa \ ibid. pp. 395-400, pi. xxviii. 
(e) Die Bursae der Ophiuren und deren Homologon bei den Fentre- 
miten ; Nachr. Ges. Dotting. 1878, pp. 215-220. 
11. Lyman, T. (a) Ophiuridce and Astrophytidoe of the ‘Challenger’ 
expedition, i. Bull. Mus. 0. Z. v. pp. 65-163, pis. i.-x. (b) Report 
on the Ophiurans, &c. ; supra, No. 1. 
12. Mackintosh, H. W. Report on the Acanthology of the Desmo- 
sticha, Haeckel ; i. On the Acanthological relations of the Desmo- 
sticha. Tr. R. Irish Ac. xxvi. pp. 475-490, pis. ix.-xi. 
13. Perrier, E. Etude sur la repartition geographique des Astdrides. 
N. Arch. Mus. (2) i. pp. 1-108. 
14. Rathbun, R. Additions to the Echinoid Fauna of Brazil. Am. 
J. Sci. (3) XV. pp. 82-84. 
15. Selenka, E. von. Zoologische Studien. i. Befruchtung des Eies 
von Toxopneustes vo.riegatus. Ein Beitrag zur Lehre von der Be- 
fruchtung und Eifurchung. Leipzig ; 1878, 38 pp. 3 pis. 
16. Sladen, W. P. On a an Echinoderm form inter- 
