36 



OPIIIURA APPRESSA. 



riety seems more abundant near St. Thomas, and the green, at Cape 

 Florida. The length of the arms is four or five times the diameter of 

 the disk, and the proportion is about the same in those of moderate size 

 and in the largest. The side mouth-shields may be entirely covered by 

 grains. 



This species comes among those that have the lowest arm-spine long- 

 est, and have no radial shields. It differs from 0. JElaps in the number 

 and form of the arm-spines. 



LIST OF SPECIMENS. 



Catalogue | Original ' Numbsr 

 Number, i Number, of Spec. 



Locality. 



When 



Collected. 



Whence obtained. 



Nature of 

 Specimen. 



57 

 58 

 59 



60 

 61 

 62 

 63 

 64 

 65 

 66 

 67 



68 

 69 

 70 

 71 

 412 



986 

 981 

 1071 

 1082 

 1104 

 1179 

 1180 

 1154 

 1192 



53 



Museum of 



124- Florida. 

 Florida. 

 West Indies. 



10 

 2 

 4 

 3 

 4 

 1 

 7 

 5 



1 



12+' 



12-1- 



3 



4 

 2 

 5 

 1 

 4 

 12+ 

 1 

 4 

 2 



Tortugas, Fla. 

 Tortngas, Fla. 

 Tortugas, Fla. 

 Bay of Cum an a. 

 Cape Florida. 

 Jeremie ; Havti. 

 St. Thomas, tV. I. 

 Cape Florida. 



Charleston, S. C. 

 Florida. 

 Florida ? 

 Florida. 

 Key West. 



Comparative Zoology. 



G. Wurdeman. 

 Prof. Agassi z. 

 University Museum, 



Copenhagen. 

 J. E. Mills. 

 Ca])t. Woodbury. 

 J. E. Mills. 

 Capt. Couthouy. 

 G. Wurdeman. 

 Dr. D. F. Weinland. 

 A. H. Riise. 

 G. Wurdeman and J. 



E. Mills. 

 Prof. F. S. Holmes. 

 G. Wurdeman. 



Mar. 15, '58. 

 July, 1859. 

 Ap. 21,22,'58, 



Apr. 18, '58. 



Apr. 1858. 



Smithsonian Institution. 



Cape Florida. 

 Garden Key, Tortugas. 

 St. Thomas, W. I. 

 St. Thomas, W. I. 

 St. Thomas, W. I. 

 Florida. 

 Tortugas, Fla. 

 St. Thomas, W. I. 

 Cape Florida. 



Prof. Ajjassiz. 



G. Wurdeman. 

 G. Wurdeman. 

 A. H. Riise. 

 A. H. Riise. 

 A. H. Riise. 



Capt. Woodbury. 

 A. H. Riise. 

 G. Wurdeman. 



Alcoholic. 



Dried. 



Alcoholic. 



Alcoholic 



Dried. 

 Alcoholic. 



Dried. 

 Alcoholic. 



