308 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Plate 58 



Both figures natural size 



Fig. 1. Goniocidaris {Cyrtocidaris) tenuispina, new species. Side view. 



2. Goniocidaris {Cyrtocidaris) tenuispina, new species, var. major, new 

 variety; aboral side. 



Plate 59 



All figures natural size 



Fig. 1. Goniocidaris {Cyrtocidaris) tenuispina, new species, var. tuber culata, new 

 variety. Side view. 



2. Goniocidaris {Cyrtocidaris) tenuispina, new species; aboral side. 



3. Siylocidaris effluens, new species, side view; abnormal specimen, showing 



double ambulacrum. 



Plate 60 



Both figures natural size 



Fig. 1. Psilocidaris echinulata, new species; aboral side. 

 2. Psilocidaris echinulata, new species; oral side. 



Plate 61 

 All figures natural size 



Fig. 1. Schizocidaris serrata Mortensen; oral side. 



2. Rhopalocidaris hirsutispina (de Meijere), var. viridis, new variety. Half 



side view, aboral side. 



3. Schizocidaris fasciata, new species. Side view. 



4. Psilocidaris echinulata, new species; aboral side. 



5. Psilocidaris echinulata, new species; oral side. 



6. Goniocidaris {Cyrtocidaris) tenuispina, new species, male; aboral side. 



7. Goniocidaris {Cyrtocidaris) tenuispina, new species; oral side. 



8. Goniocidaris {Cyrtocidaris) tenuispina, new species, female; aboral side. 



9. Goniocidaris {Cyrtocidaris) tenuispina, var. tuberculata, new variety; 



side view. 



10. Goniocidaris {Cyrtocidaris) tenuispina, var. tuberculata, new variety; 



oral side. 



11. Goniocidaris {Cyrtocidaris) tenuispina, var. tuberculata, male; aboral side 



Plate 62 



Both figures natural size 



Fig. 1. Siylocidaris effluens, new species; aboral side. 

 Stylocidaris effluens, new species; oral side. 



Plate 63 

 All figures natural size 



Fig. 1. Stylocidaris annulosa, new species; aboral side. 



2. Siylocidaris reini (Doderlein), var. rubida, new variety; oral side. 



3. Stylocidaris reini (Doderlein), var. rubida, new variety; aboral side. 



4. Psilocidaris echinulata, new species. Spines (station 5429). 



5. Goniocidaris {Cyrtocidaris) tenuispina, new species. Spines. 



