THE GENERAL SUBJECT. 
Ech. 2 
13. . Od an Unusual Form of the Genus Ilemipholis. Tom. cit. 
pp. 138-144, pi. vi. 
14. Foettinger, a. D^couverte de I’hemoglobine dans le sjvstcme aqui- 
fere d’un Echinoderme. Bull. Ac. Belg. (2) xlix. pp. 402-405. 
15. . Sur I’existence de I’hemoglobine chez les Echinodermes. Arch. 
Biol. i. pp. 405-413, pi. xvii. 
IG. Geddes, P. Observations sur le fluide perivisceral des Oursins. 
Arch. Z. expdr. viii. pp. 483-497, pis. xxxvii. & xxxviii., and see 
P. It. S. XXX. p. 253. 
17. Giesbrecht, — . Der feinere Bau der Seeigelziihne. Morph. JB. vi. 
pp. 79-106, pis. ii.-v. 
18. Goette, a. Bemerkungen iiber Entwickelungsgeschichte der Echino- 
dermen. Zool. Anz. iii. pp. 324-326. 
19. Greef, R. Ueber den Bau und die Entwickelung der Echinodermen. 
VI. Arch. f. Nat. xlvi. pp. 94-101. 
20. Hutton, F. W. Notes on some New Zealand Ecliinodermata, with 
descriptions of new species. Tr. N. Z. Inst. xi. pp. 305-308. 
21. Ludwig, H. Ueber einige seltenere Echinodermen des Mittelmeeres. 
MT. z. Stat. Neap. ii. pp. 53-72, pi. iv. 
22. . Ueber den primaren Steinkanal der Crinoideen nebst ver- 
gleichend-anatomischen Bemerkungen liber die Echinodermen iiber- 
haupt. Z. wiss. Zool. xxxiv. pp. 310-332, pis. xii. & xiii. 
23. . Neue Beitr/ige zur Anatomie der Opbiurjop. Tom. cit. pp. 
333-366, pis. xiv.-xvi. 
24. . Ueber Asthenosoma imrium, Grube, und iiber ein neues Organ 
bei den Cidariden. Tom. cit. pp. 70-86, pis. ii. & iii., 1 woodcut. 
25. . Die Bildung der Eihiille in Antedon rosaceus. Zool. Anz. iii. 
pp. 470 &471. 
26. . Ueber eine lebendiggeb/irende Chirodota. L. c. p. 492. 
27. Lyman, T. A Structural Feature hitherto unknown among Echino- 
dermata found in deeprsea Ophiurans. Anniv. Mem. Best. Soc. 
pp. 1-12, pis. i. & ii. 
28. . A Preliminary List of the known Genera and Species of 
Living Ophiuridce and Astrophytidce, with their localities and 'the 
depths at which they have been found ; and reference to the prin- 
cipal synonyms and authorities. Cambridge, tl.S.A. : 1880, 4to^ 
pp. 45 (printed on one side only). 
29. Martin, K. Revision of the Fossil Echini from the Tertiary Strata 
of Java. Notes Leyd. Mus. ii. pp. 73-85. (Q\ Appendix to Die 
Tertiarschichte auf Java. Leyden- 1880, 4to.) 
30. Perrier, E. Les Etoiles de mer des regions profondes du golfe du 
Mexique. C. R. xci. pp. 436-439 ; Ann. N. H. (5) vi. pp. 326-328. 
1880. [voL. XVII.] D 2 
