XXVlll ILLUSTRATIONS 



FIGURE PAGE 



530. The female of a parasitic Copepod (Penella antardica) found on whales. 

 From Wilson, U. S. N. M 176 



531. The female of a Copepod {Leriiaeenicus longiventris) parasitic on vari- 

 ous fishes. From Wilson, U. S. N. M 176 



532. The female of a Copepod {Penella instructa) parasitic on the swordfish. 

 From Wilson, U. S. N. M 176 



533. Illustration of an old and persistent myth; barnacles hanging on a tree, 

 with the geese which have developed from them. From Aldrovan- 



dus 180 



534. Details of the supposed transformation of a barnacle into a goose. From 

 Aldrovandus 180 



535. A Sea-lily {Ptilocrinus piimaliis) dredged by the "Albatross" off the 

 Queen Charlotte Islands at a depth of 9,528 feet, or 1.8 miles. From 



A. H. Clark, U. S. N. M 184 



536. An East Indian Sea-lily {Saracrinus angidatus). From A. Agassiz, 

 after P. H. Carpenter 184 



537. A Caribbean Sea-lily {Endoxocrinus parrac). From A. Agassiz, after 



P. H. Carpenter 184 



538. A delicate Sea-lily from the coast of Norway (Rhizocn'nus lofolcnsis), 

 which is also found on our coast from Florida to Massachusetts. From 

 Wyville Thomson, after M. Sars 184 



539. A Comatulid or Feather-star {Stylomelra spiiiifera) from the Caribbean 

 Sea. From A. Agassiz 184 



540. A curious barnacle-like Sea-lily (Holopiis rangii) from the Caribbean Sea. 

 From A. Agassiz, after P. H. Carpenter 184 



541. The same, another individual seen from the opposite side. From A. 

 Agassiz, after P. H. Carpenter 184 



542. A curious deep sea Sea-urchin {Pourtalesia jeffreysi). From Wyville 

 Thomson 184 



543. A West Indian Sea-urchin {Dorocidaris blakei) from rather deep water. 

 From A. Agassiz 184 



544. A deep water Star-fsh {Pliitonaster agassizii) abundant off our north- 

 eastern coast; this individual was dredged off the coast of New Jersey in 

 2,304 feet of water 184 



5J5. The only specimen yet known of a curious Star-fish (Anthenea mexicana) 



from the west coast of Mexico 184 



546. A Brittle-star with branching arms {Astrocyclus caccilia) ; these creatures 

 are commonly called sea-spiders, sea-scorpions, or basket-fish. From 



A. Agassiz 188 



547. A very long-armed Brittle-star {Ophiocreas spinulosus). From A. 

 Agassiz 188 



548. A curious Sea-cucumber (Elpidia glacialis) from the Arctic Ocean, seen 

 from above , this type is found everywhere in very deep water. From 

 Nordenskjold 188 



549. The same, lower side. From Nordenskjold 188 



550. Another Arctic Sea-cucumber {Trochostoma arcticum). From A. 

 Agassiz, after Koren and Danielssen 188 



