LIST OF ILLI'STKATIUNS. XV 



, . , . . Pige. 



Liobagrm rcini qin 



Shoulder girdle < )f JAiiitpris guttata, outer view yjg 



Shoulder girdle of A ntigonkt rubm-eiis. ( From Starks) 919 



Shoulder girdle of Laiiqtris guttata, inner view 92i 



A restoration of the better specimen [of H3droid], enlarged 954 



Basal part of stem [of Hydroid], Avith the filament membrane jiartly torn and 



pulled aside " oc c 



Camera outline of one of the peduncles of the gonophores [of Hydroid] 955 



Longitudinal section [of Hydroid] through the stem wall near its base 956 



Portion of last figure more highly magnified 957 



Part of section [of Hydroid] through the basal jiart of a stem of Cor)jmorpIia 



pendida from Woods Hole ' 9153 



Portion of the same section, l)ut a little higher up above the region of the basal 



filaments yco 



AplJa egmontis qeo 



Hexagrammos almraco Iqqq 



Hexagrammos octogramnim jqjq 



Hexagrammos lagocephalns jni 2 



PLATES. 



Facing page. 



I-IL North American Tlu/sanoj/lera 9^2 



12-1;^. East American Vcneridiv 412 



14- IB. AVest American Vaieridiv 41 2 



17. Females and young of Lasiurine bats 426 



1 8 Skull and teeth of Lenothrix canus, type 484 



19. Part of interorbital region and palate in L'atiifa palUxta and R. laiiata . . 484 



20-25. Cincinnatian species of Homotnjpa 592 



26-27. Mitsukurma owstoui Jordan (39Q 



28. Lateral aspect of brain of walrus 688 



29. Mesal aspect of brain of walrus ggg 



30. Chasmichthys gidosus ( misakiii.s) gog 



31-54. Dragon-fly wing venation 7g4 



55. Some American Orthoptera 8jq 



56-59. Walkingsticks of the United States 886 



60. Talorchestia fritzi, new species 932 



61. Ilgatellafaxoni, new species 932 



62. American Pelecypoda 959 



63. Astarte and Venericardia 959 



64. Chlamydotheca mexicana, new species 1002 



65. Herpetocypris reptims and Potamocyjms smaragdiua 1002 



66. Spirocyjyris passaica and Cypris virens 1002 



67. Cypris ptd)era JOO'? 



68. Cypris pellucida and Cyprin rxscid2)ta 1002 



69. Chlamydotheca aztcca JOO-^ 



