4 Ech . 
ECHINODERMATA. 
48. [Prouho, H] Sur le systeme vasculaire des Echinides. Op. cit. 
ciii, pp. 560-563. 
49. Rathbun, R. Report upon the Echini collected by the U.S. Fish 
Commission Steamer ‘Albatross,’ in the Gulf of Mexico, from 
January-March, 1885. P. U. S. Nat. Mus. viii, pp. 603-620. 
50. . Notice of a Collection of Stalked Crinoids made by the 
Steamer ‘ Albatross * in the Gulf of Mexico and Carribean Sea, 1884 
& 1885. T. c. pp. 628-635. 
51. •. Catalogue of the Collection of recent Echini in the United 
States National Museum. Op. cit. ix, pp. 255-293. 
52. Sarasin, C. F., & , P. B. Ueber einen Lederigel aus demHafen 
von Trincomalie (Ceylon) und seinen Giftapparat. Zool. Anz. ix, 
pp. 80-82. 
53. Sturtz, B. Beitrag zur Kenntuiss paliiozoischer Seesterne. Palae- 
ontogr. xxxii, pp. 75-98, pis. viii-xiv. 
* 54. Th£el, H. Report on the Uolothurioidea dredged by H.M.S. 
‘ Challenger’ during the years 1873-76. Chall. Rep. Zool. No. xxxix, 
290 pp., 16 pis. 
55. . Reports on the Results of Dredging, &c. Report on the 
Hoiothurioidea. Bull. Mus. C. Z. xiii, pp. 1-21, 1 pi. 
56. Wachsmutii, C., &' Springer, F. Revision of the Palceocrinoidea. 
Part hi, Section ii. J. Ac. Philad. 1886, pp. 64-227. 
57. Wachsmuth, C. On a New Genus and Species of Blastoids, with 
observations upon the Structure of the Basal Plates in Godaster and 
Pentremites. P. Davenport Ac. iv, pp. 76-87. 
58. . Description of a New Crinoid from the Hamilton Group of 
Michigan. T. c. pp. 95-97. 
59. Walther, J. Untersuchungen iiber den Bau der Crinoiden mit 
besonderer Beriicksichtigung der Formen aus dem Solenhofener 
Schiefer und dem Kelheimer Diceraskalk. Palaeontogr. xxxii, 
pp. 155-200, pis. xxiii-xxvi. 
Geographical Distribution. 
Echinoderms from “ warm area ” of Faeroe Channel, J. Murray. 
P. Phil. Soc. Glasg. xvii, pp. 322 & 323 ; from ‘ k cold area,” pp. 327 
& 328. 
Arctic Gomatulce : Carpenter (10). 
Jan Mayen : Fischer (26). 
Behring’s Sea : Ludwig (37). 
Tromso and West Fiumark : Aurivillius, Bih. Sv. Ak. . Handl. xi, 
No. 4, pp. 47-51. 
Liverpool Bay : Herdman (29) ; Chadwick (12). 
South-west- of Ireland : Haddoii and Bell, P. R. Irish Ac. (2) iv, 
pp. 618 - 621 . 
Caribbean Sea : Holothurians, Th6el (55). 
