GENERAL MORPHOLOGY, ECHINOIDEA. 
Ech. 5 
MacMunn (32) contributes to the knowledge of the colouring matter 
echinochrome. 
0. and R. Hertwig have made the ova and spermatozoa of various 
European Echinids the basis of experimental inquiries into “ die Bedin- 
gungen der Bastardbefruchtung ”; Jen. Z. Nat. xix. pp. 121-165, and 
Suppl. i. pp. 72-76. 
R. Hertwig has used the ova of Echinids to criticise Pfliiger’s theory 
of the influence of gravity on cell-division ; t. c. Suppl. pp. 70-72. 
ECHINOIDEA. 
Notice of Echinoiclea of ‘ Challenger’ Expedition ; Agassiz, Chall. Xar. 
i. pp. 197-201. 
On the value of Pomel’s (44) generic and subgeneric divisions, see 
Gauthier (17). 
Prouho (46) finds that the pluteus of Dorocidaris has the lobes greatly 
developed. 
Ayres (1) describes the sphaeridia, and discusses the results of Loven. 
Duncan (12, 13) adds to our knowledge of the structure of the ambu¬ 
lacra. 
Ramsay (47) has notes on some of the Australian species, and figures :— 
Phyllacanthus australis, sp. n., Port Jackson, p. 44. 
Salmacis woodsi , sp. n.. Port Jackson ?, p. 47. 
Echlnoeardrum australe has been met with in water which at certain 
seasons of the year must at least become brackish ; p. 53. 
Goniocidaris tubaria described and figured ; M’Coy, Prodr. Zool. Viet, 
x. pp. 33-35, pi. c. 
On Ccelopleurus and Arbacia ; see Duncan & Sladen (16). 
Ccelopleurus maillardi , “tag” of ; Duncan, Ann. N. H. (5) xvi. pp. 88 
& 89. 
Doderlein (11) describes as new :— 
Dorocidaris japonica, p. 76, granclis , p. 77, ? gracilis , p. 78 ; 
Stephanocidaris biserialis, p. 79, Discocidaris mikado, p. 80 ; 
Goniocidaris clypeata , p. 82 ; 
Salenia pacijica, p. 84 ; 
Pleurechinus variabilis , p. 90, ruber , p. 92 ; 
Salmacopsis, g. n., for S. olivcicea , p. 93 ; Salmacis lactea, p. 94 ; 
Hemipeclina mirabilis , p. 96 ; ' 
Echinus luciclus , p. 97 ; 
Toxopneustes elegans , p, 99 ; 
Clypeaster clypeus, japonicus , p. 100, excelsior , p. 101, virescens, p. 102 ; 
Laganum fuclsyama, Peronella pellucicla, p. 104, rubra p, p. 106 ; 
Brissus agassizi, p. 108. 
And has notes on :— 
Cidarls metularia , Phyllaccinthus verticillatus, Diadema setosum , Echino- 
metra lucunter, Slrongylocentrotus clepressus, Sphcerechinus pulcherrimus , 
Temnopleurus toreumaticus , T. hardiuickii . T. reynardi, Toxopneustes pile- 
