ASTEROIDEA. (IV, D.) 
Echin. 81 
Pauliella n. g. of Pentacerotidae with genotype P. aenigma n. sp., Cocos 
Id., 121 m., perhaps is young of Paulia horrida ; Ludwig (197) p. 161, 
pis. xii, xxiii, xxiv, xxv, xxvi. 
Pedicellaster improvise n. sp., Galapagos & Cocos Id., 1618-2419 m. ; 
Ludwig (197) p. 216, pi. xxxv. P. typicus ; Nordgaard (230) p. 160. 
Peltaster hebes Yerrill is syn. of P. nidarosiensis (Storm sub Goniaster) 
redescr. and figd., which thus becomes genotype ; Grieg (121) p. 5. 
t Pentaceros rediagnosed, incl. Oreaster (q.v.) (p. 76), P. sp., Chalk (p. 89, 
pi. xxv), P. abbreviate n. sp., Upper Chalk, Charlton, Kent (p. 86, 
pi. xxiv), P. bispinose n. sp., Upper Chalk, Sittingbourne, Kent 
(p. 87, pi. xxiii), P. boysii , redescr., probably incl. P. senonensis , 
Valette (p. 80, pis. xxii, xxiii, xxvi), P. bulbiferus, redescr. (p. 77, 
pis. xx, xxi, xxiii), P. coronate , redescr. (p. 82, pis. xix, xxiv, xxv), 
P. ocellatus , redescr. (p. 86, pi. xxv), P. pistilliferus , discussed (p. 88, 
pi. xxv), P. punctate n. sp., .Upper Chalk* England (p. 88, pi. xxvi), 
P. squamatus, redescr. (p. 83, pi. xxv) ; Spencer (305). 
Pentacerotidae n. g. see Pauliella. 
Pentagonaster : — + P. broumi n. sp., Cretaceous, Fox Hills Sandstone, 
near Lander, Wyoming ; Weller (334) telt-figg. P. ernesti h. sp., 
Cocos Id., 2149 m. leads to Nymphaster ; LudwIg (197) p. 136, 
pi. x. P. granularis ; Kemp (152) p. 189 : Nordgaard (230) 
p. 160 : incl. Astrogonium boreale Barrett, measurements, variations, 
pedicellariae, spines; Grieg (122). \P. megaloplax ; White (338) 
pp. 470, 472, 476. P. nidarosiensis ; Schmidt (291) p. 22 : vide 
etiam sub Peltaster. \P. obtuse , redescr. : Spencer (305) p. 74, 
pi. xxii. P. paxillosus, vide Odontaster grayi. P. placenta ; Grieg 
(121) p. 4. t P. robustus n. sp., Upper Chalk, Sussex ; Spencer 
(305) p. 73, pi. xxi. P. tuberculate ; Bell (26) p. 246. 
Peribolaster biserialis il. sp., between Sta. Catalina and Sta. Barbara Is., 
Cal., 178-195 fm. ; Fisher (92) p. 313, no fig. 
Perfcnaster “only an aberrant Echinaster ” ; Bell (26) p. 253. 
Persepkonaster armiger n. Sp., E. of Cocos Id., 1951 m. ; Ludwig (197) 
p. 36, no fig. P. penicillatus n. sp., oft’ Los Coronados Is. S.W. Cal. 
530-638 fm. ; Fisher (92) p. 297, no fig. 
Plutonaster abyssicola n. sp., G. of Panama, 1865-3058 m. ; Ludwig 
(197) p. 30, pis. iii, xix. P. bifrons ; Kemp (152) p. 188. P. pareli ; 
1. c. & pp. 183, 205 : Nordgaard (230) p. 160. 
Pontaster , syn. of Cheiraster ; Ludwig (197) pp. 1, 8. P. tenuispinis ; 
Kemp (152) pp. 187, 205 : Nordgaard (230) p. 160 : Schmidt (291) p. 20. 
Porania antarctica ; Ludwig (199) p. 51; pi. vi. P. pulville ; Kemp; 
(152) p. 189. 
Poraniamorpha rocea [sic] ; Nordgaard (230) p. 160. 
Porcellanaster pacificus n. sp., G. of Panama, Cocos Id., Acapulco, 
Malpelo Id., 2070- 3436 m. ; Ludwig H.97) p. 89, pi. vi. P. (Erem, to- 
aster) tenebrarius n. sp., 200 miles off San Diego, Cal.,. 2196-2228 fm.; 
Fisher (92) p. 293, no fig. P. waltharii n. Sp., G. of Panama, 
Galapagos and Acapulco, 2418-4082 m. ; Ludwig (197) p. 92, pi. v. 
Porcellanasteridae n.g., see Albatrossia. n. s.-g. of Porcellanaster , see 
Eremicaster. 
Pseudar chaster referred to Pentagonasteridae ; Ludwig (197) p. 106. 
P. alascensis n. sp., near Yes Bay, Behm Canal, Alaska, 147-205 fm. ; 
Fisher (92) p. 303, no fig. P. mosaice (p. 110), P. pectinifer n. sp., 
G. of Panama, 1865 m. (p. 106, p. vii), P. pulcher n. sp., Galapagos 
and Acapulco, 702-1618 m. (p. 110, pis. viii, xxii); Ludwig (197). 
P. pusillus n. sp., between Sta. Barbara and San Nicholas Is., Cal., 
216-339 fm.; Fisher (92) p. 304, no fig. P. tesselatus ; Bell (26) 
p. 242. P. verrilli n. sp., G. of Panama, 998 m.; Ludwig (197) 
p. 116, pis. vii, xxiii. 
1905. [VOL. XLII.] F 6 
