Plate XVII. 



15, 2123, 3, 34, 37, 38, 43, 48, 49 Echinocardium cordatum. 4, 7, 8, 10, n, 17, 27, 31, 40, 41, 45, 50 Ech. flavescens. 5, 6, 9, 13, 

 l6 > 35, 39 Ecl '- capense. I, 18, 20, 24-26, 28, 29, 32, 33, 42, 44 Ech. pennatifidum. 2, 3, 12, 19, 47, 51, 52 Ech. mediterraneum. 



14, 36, 46 Ech. intermedium. 



Fig. i. Echinocardium pennatifidum, tridentate pedicellaria. 2 SL. 



2. mediterraneum, valve of tridentate pedicellaria. 7/j. 



3- - rostrate s<y x . 



4- flavescens, - globiferous side view. (Comp. Fig. 10). 7/ x . 



capense, valve of small tridentate pedicellaria. (Comp. Figs. 35, 39). 7/j. 



6- rostrate (Comp Fig. 16). 7/j. 



7- flavescens, - - ophicephalous '75/j. 



side view. '75^. 



9- capense, - small rostrate ?<>/,. 



- I0 - flavescens.. - - globiferous from the inside. (Cmp. Fig. 4). 7<y x . 



II. - small tridentate 7/ x . 



12. mediterraneum, valve of globiferous' pedicellaria. 5%. 



13- capense, - small tridentate 7<y x . 



14- intermedium, tridentate pedicellaria. 35/ x . 



cordatum, valve of rostrate pedicellaria. ?%. 



capense, (Comp. Fig. 6). 7/ x . 



flavescens, -. side view. (Comp. Fig. 40). 7^. 



pennatifidum, valve of globiferous pedicellaria, side view. (Comp. Fig. 29). 7/ x . 

 19- mediterraneum, - - small tridentate 7/ x . 



20. pennatifidum, - rostrate (Comp. Figs. 28, 32). SQ/J. 



2I - cordatum, (Comp. Fig. 34). Specimen from 



0resund. ?%. 



- tridentate (Mediterranean). ?%. 



2 3- - - s?/,. 



24. pennatifidum, - 37/ r . 



2 5- side view. (Comp. Fig. 26). 37/j. 



fr. the inside. (Cmp. Fig. 25). 37/ t . 



flavescens, 3 7/ x . (M. Sars). 



pennatifidum, - rostrate (Comp. Figs. 20, 32). 37/ x . 



2 9- - globiferous fr. the inside. (Cmp. Fig. 18). 37/,. 



3- cordatum (Tamaris), valve of trideutate pedicellaria. 37/ x . 



3 1 - flavescens, valve of tridentate pedicellaria. (Bergen). 37/ x . 



pennatifidum, valve of rostrate pedicellaria. (Comp. Figs. 20, 28). 5<y x . 



33- - tridentate 5/ x . 



34- cordatum, - rostrate (Comp. Fig. 21). 7/j. (Naples). 



35- capense, - small tridentate pedicellaria. (Comp. Figs. 5, 39). 7/ x . 

 36. intermedium, - rostrate (Tamaris). 7o/ x . 



37- cordatum, - globiferous 7/ x . 



3^- - rostrate 7<y x . 



39- capense, - small tridentate (Comp. Figs. 5, 35). /% 



flavescens, - rostrate (Comp. Fig. 17). 7<y r . 



4 1 - large tridentate pedicellaria. 37/ x . 



4 2 - pennatifidum, tridentate 37/ x . 



43- cordatum, valve of tridentate pedicellaria. 37/ x . 



44- pennatifidum, rostrate pedicellaria. 37/ x . 



45- flavescens, globiferous 35/ r . 



4- intermedium, valve of rostrate pedicellaria. 7o/ x . 



47- mediterraneum, globiferous pedicellaria. 3/ x . 



48- cordatum, valve of tridentate pedicellaria. 37/ x . 



49- globiferous pedicellaria. ss/,. 



50- flavescens, rostrate - ; so/ x< 



5 1 - mediterraneum, clavula. 5<y r- 



5 2 - rostrate pedicellaria. ss/,. 



