XIV LIST OF ILLUSTRATIONS. 



Page. 

 Siphateles mohavensis ^. 299 



Pronotum of blattid, probably Atimoblatta reducta 302 



Atimohlatta reducta 302 



Carabites arapahoensis 307 



Balaninus hecklyi 3O8 



Calandrites ursorum 30g 



Stylops swenki. Ventral view of triungulinid size 405 



Meloid triungulin. Ventral "\dew 405 



Mi/odites solidaginis. a, Triungulinid, ventral view; 6, posterior leg; c, pos- 

 terior coxa; d, pulvillus, lateral view; e, pulvillus, ventral view;/, mouth 

 parts, ventral view ; 406 



Diagram illustrating measm-ements used in describing female cephalothorax. . . 406 



Zoogeograpliical regions 486 



Leucosolenia albntrossi. a, Triradiates of ascon-tube; b, quadriradiate of ascon- 

 tube; c, oxea of ascon-tube; (/, same seen from side; d, triradiate of the lining 

 layer of pseudogaster; e, quadriradiate of the lining layer of pseudogaster 527 



Sycon simushirensis. a, Tubar triradiates; b, subgastral triradiates; c, gastral tri- 

 radiates; d, gastral quadrii-adiates; e, trii-adiate of oscular margin;/, quadri- 

 radiate of oscular margin ; g, oxea of oscular margin 530 



Heieropia mcdioarticulata. a, Subdermal triradiates; b, tubar triradiaieo, c, mxU. 

 gastral triradiate; d, gastral triradiate; c, gastral quadriradiates; e^, apical rays of 

 gastral quadriradiates; /, dermal oxea; g, triradiates of oscular margin; h, 

 quadriradiate of oscular margin ; i, oxea of oscular margin 533 



Grantia nipponica. a, Dermal triradiates; b, tubar triradiates; c, subgastral 

 triradiate ; d, gastral triradiate ; e, gastral quadriradiate; e^, apical ray of gastral 

 quadriradiate;/, quadriradiates of exhalant canals;/^, same seen from lateral 

 side; g, triradiate of oscular collar; h, quadriradiate of oscular collar; i, oxea 

 projecting from dermal surface ; j, oxea of oscular collar • 536 



Grantia beringiuna . a , Dermal triradiates ; b , tubar triradiates ; c, subgastral trira- 

 diate; d, subgastral quadriradiate; e, gastral quadriradiate;/, oxea; g, trira- 

 diate of oscular margin; h, quadriradiate of oscular margin 539 



Achramorpha diomediae. a, Dermal triradiates; b, subgastral triradiates; c, 

 gastral quadriradiates; d, triradiate of oscular margin; e, quadriradiate of 

 oscular margin;/, oxea projecting from dermal sm-face; g, oxea of oscular 

 margin ' 541 



Leucandra tuba, a, Regular dermal triradiates; b, sagittal dermal triradiate; c, 

 triradiate of chamber layer; d, quadriradiates of the larger exhalant canal; 

 e, triradiate of the larger exhalant canal;/, gastral triradiates; g, triradiate of 

 oscular margin; h, quadriradiate of oscular margin, i, gastral microxea 544 



Leucandra poculiformis . a, Dermal triradiates; b, triradiates of chamber layer; 

 c, triradiates of the larger exhalant canal; d, quadriradiates of the larger 

 exhalant canal; e, gastral triradiates; /, gastral quadriradiate. g, dermal 

 microxea 546 



Liucandra foliata. a, Regular dermal triradiate; b, sagittal dermal triradiates; 

 c, quadriradiates of the larger exhalant canal; d, gastral triradiate; e, gastral 

 quadriradiates ; /, microxea 548 



Leucandra kurilensis. a, Dermal triradiates; b, tubar triradiates; c, gastral 

 triradiates; d, oxea; e, triradiates of oscular margin;/, linear spicules of oscular 

 margin 550 



Ljeucandra splendens. a, Dermal triradiate; b, quadriradiate of chamber layer; 

 c, gastral quadriradiate; d, triradiate of oscular margin;/, larger microxea; 

 g, smaller microxea 553 



Characteristic form of phosphatic mineral in Bluff, Fayette County, meteorite . 558 



