72 Ecliin . xiv. echinoderma. [1905] 
var. nov. diffusa et rufocincta based on pigment of ovum ; Gar- 
bowski (107) p. 601, pi. xvii. 
t Paracidaris (vide etiam sub Cidaris ), diagnosis (p. 267), P. bathonica 
(p. 268), P. blumenbachi (p. 270), P. spinulosa (p. 268), P. zschokkei 
(p. 269) ; Savin (286). 
Parechinus (vide etiam sub Echinus et Psammechinus) : — P. microtuber- 
culatus ; Kiernik (154) & (155) : see further under II, F, viii, vide 
etiam Psammechinus cupreus, P. miliaris distrib. ; Doderlein (79) 
p. 378, see further under n, F, viii. 
t Parmulechinus n. g., pro Stenaster Lamb, non Bill., q. v. ; Lambert in 
Review of Lambert (171) p. 63, Jan. 1906. 
t Pedina, diagnosis ; Savin (286) p. 217. P. gervillei ; Maire (206) 
p. 232. P. sublaevis ; op. cit. p. 233 : Savin (286) p. 217. 
Pedininae , n. g. Eosalenia q. v. 
t Peltastes, diagnosis ; Savin (286) p. 207. P. clathratus ; Wollemann 
(343). P. lardyi ; Peron (248) pp. 365, 369, 375 : Davey (66) p. 32. 
P. stellulatus ; 1. c. : Savin (286) p. 208. P., of. stdlatus ; Peron 
(248) p. 369. P. studeri ; Hitzel (140): Savin (286) p. 208. P. 
valleti ; op. cit. p. 207. P. ivrighti ; Davey (66) p. 31. 
Periaster d’Orb., vide sub Linthia. 
\ Pericosmus :—P. nelsoni M‘Coy, probably a Peribrissus ; Lambert (171) 
p. 158. P. spatangoides ; Fourtau (98) p. 133. 
iPerispatangus n. S.-g. of Euspatangus , with genotype E. libycus de Lor., 
and comprising Hypsospatangus hispaniae Lamb. ; Fourtau (97) 
p. 605. 
Phormosoma adenicum n. sp., 1469 m., G. of Aden, no tig., P. indicum 
n. sp., 463-977 m. off W. Sumatra and E. Africa, no tig. ; Doederlein 
( 78) p. 621. P. placenta ; Kemr (152) pp. 197, 183: Schmidt (291) 
p. 23 : et var. sigsbeei ’, distrib. ; Doederlein (79) p. 376. 
t Phyllobrissus, diagnosis, with note by Lambert; Savin (286) p. 163. 
P. sp. non-descr. aff. gresslyi ; Douvill£ (84). P. jourdyi n. sp., 
Kimmeridgian, Tatahouine, Tunis ; Lambert (172) p. 574, pi. xxii. 
P. kiliani ; Pellat (245). P. neocomiensis ; Lambert (170) p. 841 : 
Sayn (287) p. 622 : Savin (286) p. 164. P. nicoleti and P. renaudi ; 
1. c. 
iPhymosoma (vide etiam Cyphosoma), diagnosis (p. 204), P. loryi (p. 205) ; 
Savin (286). 
t Physaster maintained, P. infiatus (d’Orb.) discussed, from Senegal ; Lam- 
bert in Peron (247). 
t Pithodia Pomel, genotype Discoidea cylindrica ; Bather (19) p. 148. 
t Plagiochasma grasanus (d’Orb.) Pomel, made Clitopygus grasi ; Savin 
(286) p. 159. 
Plagiocidaris , err. typ. pro Plegiocidaris ; Kilian (156). 
t Plagiopneustes n. g. of Spatangidae Prymnodesminae , with genotype 
Macropneustes crassus Desor ; Fourtau (97) p. 609. 
f Plagiopygus, Tertiary spp. usually called Pygorhynchus , genotype is 
Nucleolites grignonensis Defr. ; Lambert (170) p. 843, footnote : 
Lambert (171) p. 146. P. daradensis n. sp., Mid. Eocene, Balol, 
Senegal; Lambert in Meunier (212) p. 63. P. gauthieri\ Doncieux 
(81) p. 102 : Miquel (215) p. 20 : n. var. minor , Lower Lutetian, 
Aude ; Lambert (171) p. 147. P. savini (Cott. sub Pygorhynchus) ; 
op. cit. p. 148 : Doncieux (81) p. 109 : Miquel (215) pp. 20, *25. 
t Plegiocidaris (vide etiam sub Cidaris ), diagnosis (p. 257), P. sp. non- 
descr., Upper Aptien, Is&re, radiole (p. 267, pi. vii), P. alpina (p. 263), 
P. cf. alpina, interambulacrals (p. 263, pi. iii), P. charmassei (p. 257), 
P. coronata (p. 259) ; Savin (286). P. cucumifera ; op. cit. p. 257 : 
Kilian (156) p. 743. P. falsani, interambulacrals and radioles 
(p. 312, pi. vii), P. frihurgensis , radioles (p. 264, pi. iv); Savin (286). 
