No. 414.) MORTH-AMERICAN INVERTEBRATES. 493 
Pedicels present 
generally in 
or two rows. 
í Deposits “in numerous etie € 
layers, their true shape not fully c 
C. k (Ayres) 
Eastern United States from Vineyard Sound south to South 
Carolina, This species needs a reéxaminatio 
Deposits crowded, thick, knobbed buttons or 
plates with few or many perforations, and one 
end drawn out into a thorny spine or proces 
miniata s (Brandi) 
Pinkish-white ; 40 mm.; Alaska and Pacific Grove, CaL (n. 
C. albida Sel, but there are two species at Pacific Grove, Cal., 
one of which is apparently albida, and the other is clearly dis- 
tinct from it, but answers to the description of miniata. There 
are pedicels, however, on all of the interambulacra in the speci- 
| mens from Pacific Grove 
Fics. 19-27. 
19. Knobbed plate of Thyone suspecta Ludw. X 450. 
20. 
ies; seen from T X 450. 
21. The same; seen A € — 
22. The 
23. Table 
same: 
n fro 450- 
of Holothuria atra a Jaeger? seen from the side. X 450. 
25. The top of the sam 
so. 
26. Branched rods and peek of same species. X 450. 
27. Buttons of Holothuria captiva Ludw. X 450. 
