ECHINOIDEA. 
Ech. 65 
3 ; fO. jourdyi, Pliocene P of Algeria, pp. 125-127, pi. iii, fig. 4, Peron 
& Gauthier, see Cotteau (4) : n. spp. 
Oriolampas , Munier-Chalmas : definition of genus; Cotteau, (1) 
p. 51. fO. lorioli, Cott., Eocene of Callosa, Alicante ; id. (1) p. 52, pi. vi, 
figs. 6-9. 
f Ortholophus Imeatus, Dune., Eocene of Australia ; Tate, p. 274. 
f Orthopsis saemamii, Wright, Jurassic of Portugal ; DE Loriol, (3) 
pp. 88 & 89, pi. xv, figs. 12 & 13. 
f Parabrissus p>seudoprenaster, Bittner, description ; Bittner, pp. 133- 
136, with a woodcut. 
f Paradoxechinus novus , Laube, Eocene of Australia ; Tate, p. 274. 
f Peltastes valleti, de Lor., Jurassic of Portugal; de Loriol, (3) pp. 55 
& 56, pi. xiv, fig. 1. 
Pericosmusy Ag. : definition of genus ; Cotteau, (1) p. 31. 
f; P. compressus , Dune., Tertiary, Willunga, Australia ; Gregory, (1) 
p. 485, pi. xiv, fig. 1 : Eocene of Australia; Tate, p. 277. P. gigas, 
McCoy, Eocene of Australia ; id. p. 277. P. hispanicus , Cott., Eocene of 
Callosa, Alicante ; Cotteau, (1) pp. 32 & 33, pi. iv, figs. 3-5. P. latus 
(Ag.), Ag. & Desor, Globigerina Limestone, Malta ; Gregory, (4) pp. 613— 
615;syn. t Snhizaster grateloupi, Sismonda. P. mayalsi , Cott., Eocene, 
Alicante ; Cotteau, (1) pp. 33 & 34, pi. iv, figs. 1 & 2. P. nelsoni , McCoy, 
Eocene of Australia ; Tate, p. 277. P. spatangoides (Desor), de Loriol, 
Eocene of Callosa, Alicante ; Cotteau, (1) pp. 31 & 32. 
f ; P. coranguinum , Globigerina Limestone, Malta : syn. f Hemiaster 
grateloupi, Wright ; Gregory, (4) p. 615, pi. ii, figs. 3 & 4 a, b; P. 
mccoyi (== P. compressus , McCoy), id. (l)p. 485 ; P. soubellensi.s , Miocene 
of Algeria, Peron & Gauthier, see Cotteau, (4) pp. 132 & 133 : n. spp. 
Phormosoma placenta , Wyv.-Th., diagnosis and distribution ; Hoyle, 
p. 406. P. placenta, Wyv.-Th., and P. uranus , Wyv.-Th., S.W. Coast of 
Ireland, 750 fath. ; Sladen, (1) p. 711. P. sp., from 188-405 faths. ; 
Wood-Mason & Alcock, (2) p. 440. P. uranus , Wyv.-Th., diagnosis 
and distribution ; Hoyle, pp. 406 & 407. 
f Phymechinus mirabilis (Ag.), Desor, Jurassic of Portugal ; de Loriol, 
(3) pp. 108 & 109, pi. xix, fig. 2 : syn. f Diadema icauense , Cott., f Echinus 
alternans , Quenst. 
f Phymosoma radiatum, Schliit, Cretaceous, N. Bohemia ; Jahn, p. 481. 
f Pileus hemisphericus (Ag.), Desor, Lusitanian, Portugal ; de Loriol, 
(3) p. 116, pi. xxii, fig. 1. 
f Pleurodiadema perreircc , de Lor., Jurassic of Portugal; de Loriol, 
(3) pp. 91 & 92, pi. xv, figs. 14 & 15. 
Pliolampas , Pomel : definition of genus ; Cotteau, (1) pp. 64 & 65 : 
definition and affinities ; id. (3) pp. 180 & 181. fP. turretana , Thomas & 
Gauthier, Eocene of France ; id. (3) pp. 184-186, pi. ccxlv, figs. 6-9, 
pi. ccxlvi, figs. 1-6. f P. welschi , Pomel, Miocene of Algeria ; id. (4) pp. 
136-138, pi. vi, figs. 1-3. 
f ; P. gourdoni, Eocene of France, Cotteau, (3) pp. 181-184, pis. eexliv 
& ccxlv, figs. 1-5; P. medfensis , Miocene of Algeria, Peron & Gauthier, 
1891. [vol. xxviii.] f 5 
