178 M. E. Hackel's Prodromns of 



14. *8. aminiUa^ II. Norway. 



15. */S'. rho2>alodes, 11. Norway. 



16. S. co7n.j)ressum, II. {Grantia compressa, J., var. a). 

 England ; Norway. 



17. 8. utnculusjil. {Ute utnculusj O.S., var. a). Green- 

 land. 



18. *S. viUosum, H. Antilles. 



19. *xS'. vesica, H. Messina (H.). 



Genus 7. Stconella, O. Schmidt. 



Oen. char. Skeleton of Sycarium. Mouth-opening pro- 

 duced into a thinly membranous rostrum (a canal not per- 

 forated by radial canals), and with no peristomial crown. 

 Three species. 



20. >S'. quadrangidata, 0. S. Adriatic (O. S.). 



21. * S. 2)roboscidea, H. Red Sea (Siemens). 



22. *>S'. tubuhsa, H. Australia. 



Genu s 8. Sycum, Risso. 



Gen. char. Skeleton of Sycarium. Mouth-o])ening with a 

 simple peristomial crown (surrounded by a simple circlet of 

 freely projecting spicules). Eighteen species. 



23. S. cil latum, H. (Sj). ciliata,F ahr.). Greenland ; Brit- 

 ish coasts. 



24. S. arcticum, II. [8. 7'aphamcSj var., O. S.). Greenland, 



25. 8. coronatum, H. (Sj). coronata, Ellis). England, 



Weymouth (Max Scliultze). 



26. 8. giganteum, H. {Grantia ciliata, var., J.). Isle of 



Man ; Britain. 



27. 8. alojyecurusj H. {Grantia ciliata, var., Bb.). 



28. 8. tessellatum, II. {Grantia tessellata,V>h.). Channel 



Islands (Buckland). 



29. 8. anayias, II. {8p. anaiias, Montagu). Britain. 



30. 8. ovatum, H. (-S'. ciliatum, Lieberkuhn). Pleligoland. 



31. *8. clavatum, H. Norway (Schilling). 



32. */S^. lanceolatum, H. Norway (Schilling). 



33. *'S'. lingua, 11. Norway (Schilling). 



34. 8. tergestinum {8. ciliatum, 0. S.). Trieste. 



35. 8. raphanus, O. S. Dalmatia (O. S.). 



36. 8. capillosum, O. S. Sebenico (O. S.). 



37. 8. setosum,0.^. Corfu (0. S.). 



38. 8. Humboldtii, Risso. Nice ; Venice. 



39. 8. infatum {8p. inflata, Delle Chiaje). Naples (D.C.). 



40. 8. p>etiolutum,0.^. Dcsterro (Fritz Muller). 



