8 



CONTENTS. 



Staurocalyptus 



S. hamatus (Plate 16, figs. 25-43; Plate 17, figs. 1-25; Plate 18, fig-s. 1-14) 



EUBETIDAE ....... 



Fakrba ....... 



F. occa scutclki (Plate 25, figs. 25-29; Plate 26, figs. 1-21; Plate 27, figs 

 1-17) . 



F. sp.? (Plate 32, figs. 1-3) . 



F. sp.? 



EURETE ....... 



E. ei-ectum (Plate 30, figs. 1-17; Plate 31, figs. 1-28) 



E. erectum A-D ..... 



E. spinosum (Plate 29, figs. 1-26) 



Euretid from Station 4641 (Plate 106, figs. 1-3) 



Euretid (?) from Station 4651 (Plate 32, figs. 4-6) 



Euretid (?) from Station 4685 



Euretitl (?) from Station 4695 



COSCINOPORIDAB 



Chonelasma 



C. sp. (Plate 32, figs. 7-9) . 

 Tretocalycidae ...... 



Hexactinella ...... 



H. monticularis (Plate 28, fig.s. 1-28) . 

 H. sp. mdet. (Plate 32, figs. 13-15) 

 Ajmphidiscophora ...... 



Hyaloivematidae ...... 



Hyalonema 



Hyalonema 



H. obtusum gi-acilis (Plate 33, figs. 1-24; Plate 34, figs 



1-37; Plate 36, figs. 1-45; Plate 37, figs. 1-22; Plate 

 38, figs. 1-S; Plate 39, figs. 1-10 

 H. obtusum robusta (Plate 39, figs. 11-41 ; Plate 40, figs. 1-22) . 

 H. agassizi (Plate 41, figs. 1-14; Plate 42, figs. 1-59; Plate 43 



Plate 44, figs. 1-30; Plate 45, figs. 1-64; Plate 46 

 1-16; Plate 47, figs. 1-13) 

 H. polycaulum (Plate 53, figs. 1-17; Plate 54, figs. 1-45) 

 H. placuna (Plate 63, figs, 29-51; Plate 64, figs. 1-19; Plate 65, figs. 1-23 



Plate 66, figs. 1-5) 



H. sp. from Station 4656 (Plate 68, figs. 26-33; Plate 69, figs. 1-5) 



H. tenuifusum (Plate 67, figs. 1-26; Plate 68, figs. 1-25) 



H. tylostylum (Plate 69, figs. 6-25; Plate 70, figs. 1-10) . 



H. grandancora (Plate 78, figs. 16-45; Plate 79, figs. 1-26) 



H. sp. from Station 3684 (Plate 80, figs. 1-16) .... 



Leptonema 



H. campanula (Plate 81, figs. 1-26) ...... 



Prionema 



H. agujanum tenuis A (Plate 72, figs. 17-21, 23-25, 27; Plate 73, figs. 1-6; 



Plate 74, figs. 1^, 8; Plate 75, figs. 1-13, 15, 17, 19-27, 



29-37; Plate 76, figs. 1-7, 11, 12, 15-36) 



H. agujanum tenuis B (Plato 72, figs. 10, 22, 26; Plate 73, fig. 7; Plate 74, 



figs. 6, 7, 9; Plate 75, figs. 14, 16, 18, 28; Plate 76, figs. 



8-10, 13, 14) 



H. agujanum lata (Plate 77, figs. 1-10; Plate 78, figs. 1-15) 



H. azuerone (Plate 56, fig. 1; Plate 57, figs. 1-23; Plate 58, figs. 1-22) 



H. spinosum (Plate 48, figs. 1-31; Plate 49, figs. 1-23; Plate 50, figs. 1-5) 



H. crassum (Plate 106, figs. 4-37; Plate 107, figs. 1-20; Plate 108, figs. 1-17) 



H. pinulifusum (Plate 70, figs. 11-24; Plate 71, figs. 1-11; Plate 72, figs. 



1-15) 



H. fimbriatum (Plate 59, figs. 1-6; Plate 60, figs. 1-34; Plate 61, figs. 1-11; 

 Plate 62, figs. 1-45; Plate 63, figs. 1-28) 



1-19; Plate 35, fig; 



1-7 



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