17 Bcliin. 
Systematic, Eoiiinoidea. 
1031 
f Oolaslcr as syn. of Echinocorys, 
Lambert 94. 
\Oolojpygus piriformis, gracilis , Lam- 
bert 80. 
t Orchoporus gen. n. type O. Icoehleri 
L. and T. Miocene California, Lambert 
& Thi6ry Ess. nom. Echin. 1914 p. 
293. 
f Orthopsis minima, Lambert 92. 
f Oxyclypeina nom. mut. (= Oxy- 
plcura Pom. preocc.) Lambert & 
Thi£ry Ess. nom. Echin. 1914 p. 305. 
f Oxypleura vide f Oxyclypeina . 
Palaeopneusles, Clark 30. 
Palaeotropus, Clark 30. 
Parapneustes, Clark 30. 
Paraster, Clark 30. 
Paratinanthus nom. mut. (— Paratina 
Pom. 1887 non Mik. 1874) Lambert 
& Thi^ry Ess. nom. Echin. 1914 p. 303. 
Parechinus notius sp. n. Australia, 
Clark Biol. Results of F.I.S. Endea- 
vour 4p. 111. 
]Pericosmus latus figd., Fourtau 81. 
Peronella lesueuri, Clark 27. 
Phelsumaster nom. mut. ( =Phclsumia 
Pom. 1883 non Gray 1840) Lambert & 
TmfiRY Ess. nom. Echin. 1914 p. 
310. 
Phdsumastcridac trib. n. of Dcndas- 
Iridae, Lambert & TmfatY t.c. p. 316. 
Phelsumia vide Phelsumaster . 
Phnjssocystis , Clark 30. 
Phyllacanthus imperialis, Clark 27. 
f Phyllobrissus cerceleti, Lambert 
92. 
f Phymosoma with P. fustuarium p. 
34 sp. n. Campanian Belgium, Lambert 
Mem. Mus. r. Hist. nat. Belg. 4 (4) pp. 
10, 34 ; P. with P.jurense p. 81 sp. n. 
Barremian Vaulion, Lambert Mem. 
Soc. Acad. Aube 80 pp. 00, 80. 
f Phymotaxis nom. mut. (= MicrO- 
pcllis Pom. 1883 non Rettenb. 1867), 
Lambert & TinfeRY Ess. nom. Echin. 
1814 p. 253. 
f Pithodia vide Pscudodiscoidcs. 
Plagiobrissus, Clark 30. 
\Platydypeina nom. mut. (—Plaly- 
pleura Pom. 1887 preocc.) Lambert & 
ThiIsry Ess. nom Echin. 1914"p. 304. 
(n 4840 w) 
t Platypleura vido \Platyclypcina. 
f Plegiocidaris spinigera, Kilian & 
Reboul 87. 
\Plesiaster cf. bucardium Goldf,, 
Lambert 90. 
f Plesiechinus macrostoma (Wright) 
selected as genotype, Hawkins 63 ; 
P. ornatus structure, Hawkins 66. 
Plesiozonus, Clark 30. 
Plethotaenia gen. n. of Spalangidae 
type Macropneustes spatangoides Ag. 
Clark Mem. Mus. Comp. Zool. Har- 
vard 46 p. 222. 
\Plmropygus thieryi figd., Lambert 
& Thiery 95. 
Plexechinus, Clark 30. 
Pourtalesia, Clark 30. 
f Polydiadema cotteaui, Lambert 92. 
Prionocidaris australis, Clark 27. 
Protenaster, Clark 30. 
f Psammechinus with P. hexaporus 
p. 63 sp. n. Hauterivian France, Lam- 
bert Mem. Soc. Acad. Aube 80 pp. 62- 
63. 
f Pseudholaster, Lambert 94. 
Pseudocidaris clunifera, Lambert 92, 
93. 
Pseiidodiadcma, Lambert 92 ; Ravn 
122 . 
] Pscudodiscoidcs nom. mut. (= 
Pithodia Pornel 1883 non Paso. 1865) 
Lambert & ThiIsry Ess. nom. Echin. 
1914 p. 282. 
Pseudolovenia, Clark 30. 
] Pscudopyrine pygaea, Lambert 93. 
Pycnolampas, Clark 30. 
f Pygaster semisulcatus (Phill.) selected 
as genotype, Hawkins 63. 
Raphidcchinus gen. n. type Ech. 
molaris Blainv., Lambert & Thiery 
Ess. nom. Echin. 1914 p. 241. 
t Rhabdocidaris copeoides figd., Dou- 
viLLfb 43. 
Rhuncolampas cariboearum , vacifica, 
Clark 30. 
Rhynobrissus, Clark 30. 
f Rispolia subgen. n. of Nucleoliles 
type N. sublrigonata Cat., Lambert 
Bull. Soc. Sci. Yonne 70 p. 217 [but as 
gen. n. p. 223]. 
b 3 
