ECHtNOIDEA. 
Ech. 67 
Petersen (216) p. 40: amoebocytes; Cuenot (54) p. xi. E. norvegicus , 
Dub. & Kor.; Bell ( 16) p. 147, Petersen (216) p. 40, Steindachner 
( 254) p. 446 : distribution, compared with E. rarispinus , Sars. ; 
Danielssen (62) p. 3 : variations in Mediterranean form ; Maren- 
zeller (166) p. 66. E. pileolus , Lam. ; Efirio (73) p. 252. E. spa - 
tagus, Linn., see Metalia maculosa. E. sphaera , Miill., a parasitic 
Turbellarian ; Cuenot (60) : see also E. esculentus. 
\Enallaster : — E. delgadoi , do Lor. ; Aguilera (4) p. 26. E. mexicanus 1 
Cott. ; loc. cit. E. texanus , Room, sp., redescribed, and held 
to include E. peruvianus , Gabb, and possibly Spatangm columbianus , 
Lea ; Clark (36) p. 78. 
E. obliquatus , Fredericksburg formation of Comanche series, Lower Cre- 
taceous, Austin and Glen Rose, Texas, Clark, Bull. U.S. Geol. Surv. 
No. 97, p. 79, n. sp. 
t Entomastcr, Gauthier, discussed ; Lambert (146) p. 95. 
t Eocidaris Iceyserlingi , Gein. ; Geinitz (96) p. 178. 
fj Eodiadema granulata , Dune. ; Woodward (276) p. 370. 
t Epiaster : — E. brevis , Schliit., Senonian of Angouleme ; Arnaud (9) 
p. 27. E. elegans , Shum. sp., redescribed; Clark (36) p. 80. E. 
(?) sp. indet. ; Hill (122) p. 21. E. whitci , Clark, redescribed, 
equals Toxaster elegans , Conrad non Shumard ; Clark (36) p. 82. 
iEuspatangus : — E. cossoni , Gauth., redescribed, p. 649; E. croizieri , Cott., 
variation in tubercles, pp. 639 & 655 ; E. cruciatus , Pompl sp., re- 
described, p. 642; E. hagenmulleri , Per. & Gauth., redescribed, p. 645; 
E. meslei, Gauth., redescribed, p. 653; Cotteau (44). E. murrayensis , 
Laube ; Bittner (21) p. 365. E.prevosti , Desor sp.; Cotteau (44) 
p. 639. E. rotumlus, Dune. ; Bittner (21) p. 365. E. subrostratus, 
Per. & Gauth., redescribed ; Cotteau (44) p. 647. 
E. biarritzensis, p. 656, and E. vidali , p. 640, Eocene near Biarritz, Cot- 
teau, Pal. franc., Ech. Tert. ii : n. spp. 
Fibularia , Lam., redescribed and discussed ; op. cit. p. 390. t F. lorioli , 
Thom. & Gauth., redescribed; op. cit. p. 391. F. ovulum, Lam. ; 
Efisio (73) p. 252. F. volva , Agass.; Studer (256) p. 181. 
4jF. gregata , n. sp., with n. var. orbiculus , p. 347, and + F. tatei, n. sp., 
p. 348, Tertiary, Australia ; Bittner, SB. Ak. Wien, ci, Abth. 1. 
But Tate (257) p. 192, says F. gregata is very variable, and includes 
the other two forms. 
Fibularidce , discussed ; Cotteau (44) p. 385. 
iGagaria , Duncan, defined and discussed, p. 523 ; G. atacica, Cott. sp. 
redescribed, p. 525 ; G. biarritzensis , Cott. sp., ditto, p. 533; G.fros- 
sardij Cott. sp., p. 543; G. lusseri , Desor sp., p. 540 ; G.mokattan- 
ensis , Cott. sp., p. 541 ; G. nummiditica , Cott. sp., redescribed, p. 536 ; 
G. orbignyi , Cott. sp., ditto, p. 537 ; G. superba , Dames sp., p. 541 ; 
G. venustula , Dune. & Slad. sp., p. 543; G. vilanovai , Oott. sp., p.542; 
Cotteau (44). 
G. gauthieri, p. 532, & G.pegoti, p. 528, Middle Eocene of Aude, Cotteau, 
Pal. franc., Ech. Tert. ii : n. spp. 
