PLATE XXII. 

 Neolampas rostellata A. Ag. 



Fig. 1. Specimen 11 mm. long, diameter, denuded, seen from the abactinal pole (female). 



Fig. 2. The same as Fig. 1, seen from the actinal side. 



Fig. 3. The same, seen in profile. 



Fig. 4. The same, seen facing the anal extremity. 



Fig. 5. The same, seen fating the odd anterior ambulacrum. 



Fig. 6. Primary granulation of test of young specimen, 4 mm. long, diameter, arranged in indistinct 

 irregular lozenge-shaped figure . 



Fig. 7. Actinal termination of one of the lateral ambulacra, showing the five large, short-stemmed 

 globular sphasridia placed in the median ambulacral space of a specimen 12 mm. long, di- 

 ameter. 



Fig. ,; . Magnified view of denuded actinostome of a specimen 11 mm. long, diameter. 



Fig. 9. Magnified view of actinal part of test, showing the suckers, sphxridia, and primary spines and 

 tubercles of a specimen 6 mm. long, diameter. 



Fig. 10. Abactinal part of test of a female, showing the manner in which the genital openings are pro- 

 tected by spines, of a specimen 12 mm. long, diameter. 



Fig. 11. The same, denuded, showing the large genital openings and the pores of the madreporic body. 



Fig. 12. i Yi! v.il view of the abactinal system and adjoining part of the test of a female about 11 mm. 

 long, diameter. 



Fig. 13. Denuded specimen, seen from above (male), 9 mm. long, diameter. 



Fig. 14. The same, seen in profile. 



Fig. 1"). The same, seen faring the (anal system) posterior extremity. 



Fig. Hi. The same, seen faring the odd anterior ambulacrum. 



Fig. 17. Greatly enlarged view of the abactinal system and adjoining part of the test of the same speci- 

 men as Fig. 13. 



Fig. 18. Greatly enlarged view of actinostome of same. 



Fig. 19. Young male specimen, denuded, seen from the abaci inal side, 4.5 mm. long, diameter. 



Fig. 20. The same, seen in profile. 



Fig. 21. The same, en fai in the ; o terior (anal) extremity. 



Fig. 22. Enlarged view of anal groove of a specimen about 12 mm. long, diameter. 



Fig. 23. Young specimen (measuring 2.5 mm long diam.) covered with spines, seen from the actinal side. 



Fig. 2 I. The same, seen from the abactinal side, 

 anal system. 



Fig. 20. Head of .-lent stemmed tiilid actinal ambulacral pedicellaria. 

 1'ig. 27. Long-stemmed, long-headed trifid coronal pedicellaria. 

 5. Young miliary spine, with spiny cupuliform extremity. 

 Fig ' >, Minute hort-stemmed ellipsoidal sphseridia. 



Fig. 30. Anal pyramid, composed of eight Jorge triangular plates, of a young specimen 4 mm. long, 

 diameter. 



