NEOLAMPAS. 109 



synonyms. Nucleolus is therefore a synonym of Nucleolites and does not 

 invalidate Oligopodia. 



The pedicellariae of this species were very briefly described by de Meijere 

 (1904) but as he gives no figures, it has seemed desirable to illustrate them 

 now. The valves of the tridentate (PL 144, fig. 12) are narrower, deeper, and 

 of more uniform width than those of recens, and have smooth margins; they 

 are also much smaller, only about .20 mm. long. The ophicephalous valves 

 (PL 144, fig. 13) are relatively shorter and wider than those of recens and only 

 measure about .10 mm. long with a loop, .02-.04 mm. long in addition; the tip 

 of the largest loop on each head has a well-marked cross-piece. There are 

 no loops on the valves of the tridentate pedicellariae. No triphyllous pedicel- 

 lariae have been found as yet, but all the pedicellariae are very small and hard 

 to find. 



Hypselolampas, 1 gen. nov. 



Type, Catopygus recens A. Agassiz, 1879. Proc. Amer. Acad., 14, p. 204. 



The reasons for creating a new genus for this species are stated above 

 (p. 104). As I have never seen a specimen I am unable to give any new infor- 

 mation about the form. 



Aphanopora. 



De Meijere, 1902. Tijd. Ned. Dierk. Vereen, (2), 8, p. 8. 

 Type, Aphanopora echinobrissoides de Meijere, 1902. hoc. cit. 



This is another monotypic genus of which I have never seen a specimen- 

 and hence have nothing to add to the information given by the original describer. 



Neolampas. 



A. Agassiz, 1869. Bull. M. C. Z., 1, p. 271. 



Type, Neolampas rostellala A. Agassiz, 1869. hoc. cit. 



The reduction in number of genital pores which seems to characterize two 

 of the three species in this genus is worthy of special note. Perhaps more 

 abundant material may show that we are misled by immature specimens. 

 Doderlein has figured tridentate and ophicephalous pedicellariae from one 

 species of the genus, while de Meijere and I have found only ophicephalous. 

 All the pedicellariae are very minute and resemble those of Oligopodia. 



1 T^ijX6s = high + Xa/xiras = lantern, in reference to the shape of the test. 



