ILLUSTRATIONS XXVll 



FIGURE PAGE 



504. A curious Hermit Crab (Catapagurus sharrcri) of a U^pe common in deep 

 water; the hinder part of its body is enclosed within a group of sea- 

 anemones. From A. Agassiz 1 74 



505. A grotesque Crustacean {Cystosoma neptimi). From the "Challenger" 

 Reports 174 



506 A destructive wood-boring Crustacean {Sphaeroma terebrans) which in- 

 jures wooden structures in salt water. From Caiman, after G. O. Sars. 174 



507. The Gribble {Limnoria lignorum) which does serious damage to wooden 

 structures in salt water. From Caiman, after G. O. Sars 174 



508. Another wood-boring Crustacean {Chclura terebrans) commonly found 

 with the preceding. From Caiman, after G. O. Sars 174 



509. A blind cave Shrimp {Palaemonetes eigenmanni) from Cuba. From Hay, 



U. S. N. M 174 



510. A fresh water Amphipod {Hyalella knickerbockeri). From Weckel, 



U. S. N. M., after Smith 174 



511. A Cumacean (Diastylis planifrons). From Caiman, U. S. N. M 174 



512. A Sow-bug or land-living Isopod {Philoscia jacobsoni) from Java. From 

 Richardson (Searle), U. S. N. M 174 



513. Another Sow-bug {Toradjia dollfusi) from Java. From Richardson 

 (Searle), U. S. N. M 174 



514. A marine Isopod {Tecticeps renoculis). From Richardson (Searle), 



U. S. N. M 174 



515. Another marine Isopod (Syscenus latus). From Richardson (Searle), 



U. S. N. M 174 



516 A cave Isopod (Cirolaiia cubensis) from Cuba. From Hay, U. S. N. M. 174 



517. An Arcturid {A ret urns baffini) with young attached to its antennae. 

 From Wyville Thomson 174 



518. A curious Amphipod (Eiisirus ciispidatus). From Wyville Thomson. . . 174 



519. A Euphausian {Euphaiisia pelhicida). From the "Challenger" Reports 174 



520. AVycnogonid {Nymphon abyssorum). From Wyville Thomson 174 



521. A shell-bearing clam-like Crustacean called an Ostracod (Chlamydotheca 

 mexicana). From Sharpe, U. S. N. M 176 



522. The same, in end view. From Sharpe, U. S. N. M 176 



523. An Entomostracan {Parophryoxus tubulatus). From Doolittle, 



U. S. N. M 176 



524. A group of three Barnacles {Chthamaltis cirratiis); young barnacles are 

 typical young crustaceans (see fig. 583). From Pilsbry, U. S. N. M 176 



525. A parasitic Copepod {Lernanthropiis rathbuni), female, from a hogfish 

 taken at Beaufort, North Carolina. From Wilson, U. S. N. M 176 



526. The female of a parasitic Copepod {Nemesis atlantica) found on sharks. 

 From Wilson, U. S. N. M 176 



527. Dorsal view of the male of a parasitic Copepod (Psendocycnus appendicii- 

 latus) from the albacore. From Wilson, U. S. N. M 176 



528. The female of a parasitic Copepod (Lcrnaeenicits affixus) found on the 

 tomcod and some other fishes. From Wilson, U. S. N. M 176 



529. The female of a parasitic Copepod (Lernacocera branchiaUs) very com- 

 mon on the gills of cod and allied fishes. From Wilson, U. S. N. M 176 



