PLATE ARRANGEMENT OF FOUR SPECIMENS. 



169 



Melonites multiporus. 



Specimen in possession of Mr T. 

 A. Jaggar, Jr. 



Infcerambulacrum A*. 



Ambulacrum B 



Interambulacrum C *., 



o <» 

 o ^ 







p 



_j_^ 









rt 



oS 







o 













^f-c 







oi 





o 























^ 











<y 



*~* 





<s ■ 



&c • 



^ 





• 



— a 



•r c 













s 





.^ 05 



O-r 



G - 



i=! 



C 



cS 



c 



c 



s 



a 



.5 



s 



S 



^ 



iC 



3 



^ 













o 





:^ 



O 



c 



a 



=^ 



o 



o 



o 



8 



p 



19 



3 



i 



7 



p 



14 



3 



3 



6 



p 



10 



2 



S 



5 



p 



6 



2 



2 



4 



p 



3 



J 



^ 



3 



X 



2 



1 



1 



Heptagon on left or right 

 of terminal pentagon. 



Right. 



Left. 



Right. 



Left. 



Truncates initial plate 3. 



First row of plates wanting. 



Four columns of plates at base. 



8 



P 



19 



4 



3 



7 



P 



U 



3 



3 



6 



P 



10 



3 



2 



5 



P 



6? 



2 



2 



Left. 

 Left. 

 Right. 

 Right. 



First three rows of plates wanting. 



Melonites multiporus. 



Museum of Comparative Zoology 

 catalogue number 3017. 



Interambulacrum A f 



Interambulacrum Cf 



Interambulacrum Ef 



Interambulacrum Gf 



Interambulacrum I f 



Melonites multiporus. 



Museum of Comparative Zoology 

 catalogue number 3U19. 



Interambulacrum f 



9 



P 



23 



4 



4 



8 



P 



17 



3 



U 



7 



P 



13? 



3 



3 



Right. 

 Right. 

 Right. 



Wanting below this. level. 



17 

 13 ? 



Left. 

 Right. 



Wanting below this level. 



25 



16 



12 



9 



6 



Heptagon on right and left. 



Right. 



Right. 



Right. 



Left. 



Right. 



First four rows of plates wanting. 



Melonites multiporus. 



Museum of Comparative Zoology 

 catalogue number 3020. 



Interambulacrum! 



9 



9 



P 



23 



4 



4 





8 



P 



19 



3 



U 





7 



P 



15 



3 



3 





6 



P 



10 



3 



2 





5 



P 



6? 



2 



2 



First 



four 1 



OWS 



f plate 



s want 



ing. 



Left. 



Left. 



Right. 



Left. 



Right. 



* Interambulacrum wanting at the dorsal portion of the area, 

 t Interambulacrum complete at the dorsal portion of the area. 

 X Plates preserved at the dorsal portion of the area only. 

 § This terminal plate is rhombic in form. (See plate 2, figure 6.) 

 II This column originates close to the dorsal termination of the area, 

 bic in outline like other plates in its vicinity. 



Its terminal plate is rhom- 



