43 Echin. 
Systematic, Eoiiinoidea. 
1031 C 
| Plagiopygus discussed (234), P. 
daradensis (233, fig.) ; Lambert in 
Meunier 2. 
1 [PlatypygHS posthumus ; Am eg hi no 
(137, 169). 
f Plegiocidaris gourdonensis sp. n., 
Barreniian of Gourdon, Alpes-Marit,., 
radioles ; Savin & Lambert, Nice, 
Ann. Soc. let. sci. 20, (96, fig.). 
Plesiastcr as section of Brissopsis ; 
Lambert 8 (106). 
Plesiodiadcma rejected ; Doeder- 
i.ein, 2 (157). 
■ \Plesiolampas saharae ; Kritmbeck 
(135). 
]Plesiosalenia gen. n. of Acrosalenii- 
dae, for Acrosalenia pentagona, bertlie- 
lini, boloniensis, lycebti (275): P. lycetli, 
juv. (297) ; Valette 2 Auxerre, Bui. soc. 
sci. Yonne, 59. 
Plcsiospatangidae rejected ; Lam- 
bert 5. 
iPliolampas discussed ; Lambert 8 
(95). — P. silvesbrii; Nelli. 
f Plioloxaster gen. n. of Spatangidae 
(140) with genotype P. lyonsi sp. n., 
Cenomanian, Isthmus of Suez ; Fourtau, 
Cairo, Bull. Inst., Egypt, ser. 4, 6 , 
(145, pi.). 
I Polygon} opygus gen. n. of Jlcmici- 
daridae, with genotype Goniopygus 
pilleti Cott., and comprising intricatus, 
minor , and heteropygus (281) : P. intri- 
calus distinguished Irom Goniopygus 
peltatus (298); Valette, 2, Auxerre, 
Bull. soc. sci. Yonne, 59. 
Porocidaris discussed (99), diagnosed 
(103) : P. gracilis, is Goniocidaris, (97) : 
P. purpurata (99), from Nicobars (117, 
pis.) ; Doederlein, 2. 
Pourtalcsia Jeffrey si, pedicellariae ; 
Doederlein, 2 (269). — P. laguncula ; 
Doflein (253, fig., 269). — P. miranda ; 
Bather, .1. 
Prionechinus (189, 191), discussed 
(187) : P. agassizi, diagnosed (192), 
descr. (194, pis.): P. chuni sp. n., 
Maldives, descr. (192, pis.): P. sagit- 
tiger, diagnosed (192), descr. (195, pis.); 
Doederlein, 2, Wiss. Ergeb. D. Tiefseo- 
Exped. 5, Lfg. 2. 
t Prorasler, discussed ; Fourtau, 
(145) : maintained, with Schizaster 
atavus Arnaud as genotype ; Lambert 8 
(103). 
\Pro8palangu8, ambulacra discussed 
(48) : P. corsicus, periplastronal zones 
(50) : P. dclplunus, periplastronal zones 
(49, pi.) : P. puslulosus (Wr.) descr. 
from Burdigalian of Venee (51, pi.) : 
P. simplex (50, pi.) ; Lambert 1. 
Protocentrolus, gen. n. of Ecliinidae, 
with genotype Echinus angulosus Leske, 
descr. ; Doederlein, 2, Wiss. Ergeb. D. 
Tiefsee-Exped. 5, Lfg. 2, (204, pis.). 
Psammcchinus, discussed, its typo is 
P. miliaria not E. variegabus or E. 
blainvillei (66) : P. blainvillei is Ana- 
pesus (q. v.) (67) : fP. delphinus sp. n. 
ex Defiance MS. Burdigalian of Barce- 
lona -(71, pi.): Lambert 8, Paris, Mem. 
Soc. geol. paleont. 14. — jP. dubius ; 
Checciiia 2 (pi. iv) : synonymy, var. 
n. formosa from Helvetian, Barce- 
lona (69, pi.): \P. eravensis sp. n., 
Tortonian, l’Herault, = Echinus milia- 
ris de Serres non Lam. (70) : fP. 
gautliieri (70) ; Lambert 8, Paris, Mem. 
Soc. geol. paleont. 14. — |P . iheringi 
(137, 168) : f P. lahillei (168); Ame- 
giiino. — fP. michelolti , descr. ; Vadasz 
(329, pi.). — P. microtuberculatus, var. 
nov. alta ; Checoiiia, 2, Palaeontogra- 
phia ital., Pisa, 12, (90, pi. iv.): 
vide etiam sub Echinus et Parechinus. — 
j*P. pusillus Munster ; Pioard (761). — t P* 
scrrcsii Desmoulins is Maestrichtian (72): 
Desor non Desm., is a large P. dubius 
(70) ; Lambert 8. — f P. tournoueri ; 
Amegiiino (137, 168). — P. variegabus A g. 
non Lam., syn. of P. blainvillei (Desm.) ; 
Lambert 8 (66). 
Pseud echinus, diagnosed, P. albo- 
cinctus, descr. (231, pis.) ; Doeder- 
lein, 2. 
Pseudocentrotus depressus , descr. ; 
Doederlein, 1 (519). 
f Pseudocodiopsis gen. n. of Diade- 
matidae with genotype Codiopsis alpina, 
and comprising C. amiaudi ; Valette 2, 
Auxerre. Bui. soc. sci. Yonne, 59, (290). 
~\Pseudodiadcma, — P. griesbachi sp. n., 
Senonian, Pondoland ; Woods, Cape 
Town, Ann. S. African Mus., 4 ; (276, 
pi.). — P. morieri ; Maire. — P. variolare ; 
WOLLEMANN. 
f Pscudoplopodia [sic] gen. n. of Diplo- 
podiidae for Diplopodia with only 3 
porepairs to each major, no genotype, 
P. callomensis (d’Orb. sub Diadema) 
first sp. mentioned (294) : P. aubissio- 
dorensis, ambulacrals (309) : P. peroni 
