ASTEROIDEA OF NORTH PACIFIC AND ADJACENT WATERS FISUER. 399 



Fig. 2. Mediaster Icnellus; abactinal platoa, proximal radial rfKimi, dlinwini: internal cunQecting oaiiclei); 

 papulie, lined; r-r radial Hcries, X 10. 



3. Ceramaster japonicus; abactinal platen from inside, proximal radial ropion, X 8. 



4. PseudarcJuLiUr pusillus; abactinal plates from inaidc, near bane of ray; r, radial scries, X 10 



5. Gcphyreaster swi/ti; epecimen from station 4784, abactinal plates from inside; R, primary radial 



plate; r, radial series, X 7. 5a. Same; abactinal plates of type from near baeo of ray; 

 r-r, radial scries, X 5. 



6. Ceramaster clarki; abactinal plates from inside, showing the curious lobes; ad, adradial series; 



r, radial series, X 8. Ga. Same; large adradial paxilla, showing the concavity at base 

 (dotted) and the pit of pedicellarian muscles (p.) 



Plate 60. 



All drawings are from the inner or coelomic side. 



Fig. 1. Ceramaster arcticus; abactinal plates from proximal radial region, showing radial series of plates 

 (r) and the differently formed dorsolateral plates on either side. These have the lot>ca 

 developed on the side toward radial line. Papulu- represented by small circles, X 8. 



2. Ceramaster hptoceramus: abactinal plates from proximal radial region, showing the radial series 



(r) and on either side the small secondary plates, X 8. 



3. Ceramaster patagonicus; abactinal plates; pr, primary radial; r, radial series. 



4. nippasteria spinosa; abactinal plates from proximal radial region, showing primary (pr) and 



secondary (s) plates and papula; (p), X 5. 



5. nippasteria cali/ornica; abactinal plates; r, radial plates; small secondary intermediate plates 



surrounding them; ad, adradial plate; papulie shown as small dark circles, X 5. 



6. nippasteria heathi; abactinal skeleton midradial region; the secondary plates are deeper than 



wide and form a fenestrated reticulum; papultc crties-lined, X 5. 



7. Cryptopeltaster Upidonotus; abactinal plates; the larger are the primary plates; papulir, small 



dsu-k circles, X 5. 



Plate 01. Asterina miniata. 



Fig. 1. Six-rayed specimen from Monterey Bay, California. 



2. Seven-rayed specimen, same locality. 



3. Specimen from north of La Paz, Gulf of California, station 3001. 



4. Specimen from Clayoquot Sound, ISrilish Columbia, dried without first being hardened. 



Plate G2. Asterina miniata. 

 Fig. 1. Apical region, denuded. 



2. Actinal surface, specimen from Monterey Bay, California. 



PuiTE GA. I'nrauinimis inftata. 



Fig. 1. Type and two young; abactinal view. 

 2. Type; actiiial view. 



Plate 04. I'oraniopsit inflaiaflexilis, type, abactinal view. 



Plate 65. ITenricia sanguinolenta. 



Fig. 1. Actinal %new of a specimen from station 4803, and abactinal, station 4281. These are as near 

 typical as are any Alaskan specimens. 

 2. One ray of a giant specimen, variety C, from station 4778, and a spe<-imen referable to the same 

 variety from station 4784. 



Plate 00. flenricia sanffuinoUnta, varieties. 



Fig. 1. Ciianl spo( imen, variety C, station 4784. 



2. Small portion of veulro-lateral surface of typical //. sanguinolenta for comparison with fig 3. 



3. Actinal surface of fig. 1, enlarged, showing marginal plates below; see also fig. 5. 



4. Small portion of abactinal surface of fig. 5, enlarge<l (variety C.). 



5. Actinal view of a ray from a giant specimen, variety*', from station 4778; aba<'tjnal eur'ai-c 



shown in plate G.5, fig. 2. These are believed to be hybrids. 



