758 BULLETIN S2, UNITED STATES NATIONAL MUSEUM. 



Plate 3. 



Radial Pentagons of Vnrious ComatuUds. 



i'lG. 9S1. — Thalanxometra agassizii, lateral view of radials and centrodorsal. (After Hiirtluub.) 

 982. — Same, dorsal view of radial pentagon. (After Hnrtlaub.) 

 9S3. — Same, ventral view of centrodorsal. (After Harthuilj.) 

 984. — Perissonietra angusticahix, lateral view of radinls and centrodorsal. (After P. H. 



Carpenter.) 

 985. — Same, ventral view of radial i>eutagon. (After P. H. Carpenter.) 

 986. — I'aclnilonieira iinrqvalif', lateral view of radials and centrodorsal. (After P. H. Car- 

 penter. ) 

 987. — Same, ventral view of radial pentagon. (After P. H. Carpenter.) 

 988. — Pcecilometra acoela, lateral view of radials and centrodorsal. (After P. H. Carjienter, ) 

 989. — Same, ventral view of radial pentagon. (After P. H. Carpenter.) 

 990. — Charitomefra baxicurva, lateral view of radials and centrodorsal. (After P. H. Car- 

 penter. ) 

 991. — Same, ventral view of radial pentagon. (After P. H. Carpenter.) 

 992. — CharUometra incisa, lateral view of radials and centrodorsal. (After P. H. Car- 

 penter. ) 

 993. — Same, ventral view of radial pentagon. (After P. H. Carpenter.) 



Plate 4. 



Radial Pentagons of Various Comatulid~s. 



Fig. 994. — Antedon bifida, lateral view of radials and centrodorsal. (After P. H. Carpenter.) 

 995.^Same, ventral view of radial pentagon. (After W. B. Carjienter. ) 

 996.— Same. (After P. H. Carpenter.) 



997. — Solanowetra antarctica. lateral view of radials and centrodorsal. (After P. H. Car- 

 penter. ) 

 998. — Same, ventral view of radial pentagon. (After P. H. Carpenter.) 

 999. — Heliometra glacialis, lateral view of radials and centrodorsal. (After P. H. Car- 

 penter. ) 

 1000. — Same, ventral view of radial pentagon. (After P. H. Carjieuter.) 

 1001. — Promachocrinua kerguelensix, lateral view of radials and centrodorsal. (After P. H. 



Carpenter.) 

 1(X)2. — Same, ventral view of radial pentagon. (After P. H. Carpenter.) 

 1003. — Leptometra celiica, lateral view of radials and centrodorsal. (After P. H. Car- 

 penter. ) 

 1004. — Another speciuieu of same, lateral view of radials and centrodorsal. After P. 



H. Carpenter.) 

 1005.— Same, ventral view of radial pentagon. (After P. H. Carpenter.) 

 1006.— Pentamctroc7^nus aemperi, lateral view of radials and centrodorsal, (After P. H. 



Carpenter. ) 

 1007. — Same, ventral view of radial pentagon. (After P. H. Carpenter.) 



Plate 5. 



Radials and Centrodorsal of Florometra. 



Fig. 1008. — Florometra tanneri. radial articular face. (After Hartlaub.) 

 1009. — Florometra pcrplexa, radial articular face. (After Hartlaub.) 

 1010. — Same, inner side of radial. (After Hartlaub.) 



1011. — Same, lateral view of radials and centrodorsal. (After Hartlaub.) 

 1012.— Same, ventral view of radial pentagon. (After Hartlaub.) 

 1013. — -Same, ventral view of centrodorsal. (After Hartlaub.) 

 1014. — Same, dorsal view of radial pentagon, without rosette. (After Hartlaub.) 



