74 BULLETIN OF THE 



PLATE XV. 



Fig. 405. Ophiacantha discoidca, below ;%. 



Fig. 406. " " ' above ; I. 



Fig. 407. " *' arm-spines ; %. 



Fig. 408. " VaJcncicnnesi, below ; i. 



Fig. 409. " " above ; {. 



Fig. 410. " '* arm-.spincs ; ^. Some of t.liese spines broken: 

 they are really longer. 



Fig. 411. Ophiacantha ahnormis, below ; |. 



Fig. 412. '* " above ; f. Minute spines on outer edge of 

 up[>er arm-plate omitted. 



Fig. 413. Ophiacantha ahnor III is, arm-s))ines ; f. 



Fig. 414. *' Aonnani, below ; ^. 



Fig. 415. " " above; i 



Fig. 416. " '* arm-spines ; ^. 



Fig. 417. Ophiothrix coispitosa, below ; ^. 



Fig. 418. " " above; ^. 



Fig. 419. " '^ spine; \\ 



Fig. 420. " " arm-joint, profile ; {. 



Fig. 421. " aristulata, below ; f. 



Fig. 422. *' " above ; |. 



Fig. 423. " *' arm-joint, profile ; |. 



Fig. 424. " " spine ; 1. 



Fig. 425. " berberis, below ; l. 



Fig. 426. " " above ; h 



Fig. 427. " •' spine ; I 



Fig. 428. " *' arm-joint, profile ; {. 



PLATE XV I. 



Fig. 429. A^nphilepis papymcea, below ; {. 



Fig. 430. " " above ; {. 



Fig. 431. '* ' '* arm-joints; {. 



Fig. 432. " tennis, below ; £. 



Fig. 433. " " above ; $. 



Fig. 434. " ** arm-joints ; ^. 



Fig. 435. Ophiocreas carnosus, below ; ^. 



Fig. 436. " " above ; \. 



Fig. 437. '* " arm -joint near base of arm ; i 



Fig. 438. " " arm-joint near tip of arm ; i. 



Fig. 439. " caudatus, below ; \. 



Fig. 440. " •* above ; \. 



Fig. 441. *' " arm-joint near base of arm ; \. 



Fig. 442. " " arm-joint near tip of arm ; \. 



Fig. 443 " ledipus, below ; \. 



Fig. 444. " " a])ove ; \. 



Fig. 445. *' *' arm-joint near base of arm ; i. 



