USNM:PAL
Derbyia nasuta Girty
USNM PAL151038A
United States, Texas, Brewster County
USNM:PAL
Derbyia crenulata Girty
USNM PAL179844 G. Richardson 1903-09-23
United States, Texas, Culberson County
USNM:PAL
Derbyia Grant
USNM PAL211716 R. Grant et al.
Thailand
USNM:PAL
Derbyia cincinnata Cooper & Grant
USNM PAL151136G
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151165B
United States, Texas, Brewster County
USNM:PAL
Derbyina smithii (Derby)
USNM PAL209026
Bolivia
USNM:PAL
Derbyia sp 1 Girty
USNM PAL153467C
United States, New Mexico, Eddy County
USNM:PAL
Derbyia
USNM PAL534204
United States, Texas
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030C
United States, Texas, Brewster County
USNM:PAL
Derbyia arellanoi Cooper
USNM PAL115473 G. Cooper
Mexico, Sonora
USNM:PAL
Derbyia nasuta Girty
USNM PAL151038C
United States, Texas, Brewster County
USNM:PAL
Derbyia texta Cooper & Grant
USNM PAL151176
United States, Texas, Brewster County
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL153347B
United States, Texas, Brewster County
USNM:PAL
Orthotetes batesvillensis Girty
USNM PAL121213
USNM:PAL
Derbyia cincinnata Cooper & Grant
USNM PAL151150A
United States, Texas
USNM:PAL
Derbyia bella Cooper & Grant
USNM PAL151025G
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030F
United States, Texas, Brewster County
USNM:PAL
Derbyia sp 1 Girty
USNM PAL153465A
United States, Texas, Culberson County
USNM:PAL
Derbyia crassa (Meek & Hayden)
USNM PAL119227
USNM:PAL
Derbyia crenulata Girty
USNM PAL27995
United States, Texas, El Paso County
USNM:PAL
Orthotetes sp a Gordon
USNM PAL163733
United States, Wyoming, Johnson County
USNM:PAL
Derbyia robusta (Hall)
USNM PAL163734
United States, Wyoming, Carbon County
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314135
USNM:PAL
Derbyia texta Cooper & Grant
USNM PAL151179D
United States, Texas, Brewster County
USNM:PAL
Derbyia scobina Grant
USNM PAL211696 R. Grant et al.
Thailand
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL151076A
United States, Texas, Brewster County
USNM:PAL
Derbyia carteri Cooper & Grant
USNM PAL151020B
United States, Texas, Brewster County
USNM:PAL
Orthotetes declivis Girty
USNM PAL118503A Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Orthotetes (Orthotetes) Easton
USNM PAL118750
USNM:PAL
Orthotetes protensus Girty
USNM PAL314147 J. Newby 1911-08-18
United States, Oklahoma, Craig County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030A
United States, Texas, Brewster County
USNM:PAL
Derbyia crenulata Girty
USNM PAL151045C
United States, Texas, Brewster County
USNM:PAL
Orthotetes batesvillensis Girty
USNM PAL314144
USNM:PAL
Derbyia nasuta Girty
USNM PAL153547B
United States, Texas, Presidio County
USNM:PAL
Derbyia texta Cooper & Grant
USNM PAL152616C
United States, Texas, Brewster County
USNM:PAL
Derbyia scitula Cooper & Grant
USNM PAL151202B
United States, Texas, Brewster County
USNM:PAL
Orthotetes kaskaskiensis (McChesney)
USNM PAL71668A C. Butts
United States, Alabama, Colbert County
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL151080G
United States, Texas, Brewster County
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL151087
United States, Texas, Brewster County
USNM:PAL
Derbyia sp 3 Cooper & Grant
USNM PAL155029
United States, Texas, Brewster County
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151122O
United States, Texas, Brewster County
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL151198N
United States, Texas, Brewster County
USNM:PAL
Orthotetes stenopsis Henry & Gordon
USNM PAL314153 Cooper & Mesler 1931-00-00
United States, Arkansas, Washington County
USNM:PAL
Orthotetes batesvillensis Girty
USNM PAL121214
USNM:PAL
Derbyia elongata Cooper
USNM PAL115475 G. Cooper
Mexico, Sonora
USNM:PAL
Orthotetes subglobosus var. protensus Girty
USNM PAL121215
USNM:PAL
Orthotetes guadalupensis Girty
USNM PAL118502C Hill & Girty 1901-09-00
United States, Texas, Culberson County
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL151198P
United States, Texas, Brewster County
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151122L
United States, Texas, Brewster County
USNM:PAL
Derbyia scobina Grant
USNM PAL211698 R. Grant et al.
Thailand
USNM:PAL
Derbyia bella Cooper & Grant
USNM PAL153189F
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL151154L
United States, Texas, Brewster County
USNM:PAL
Orthotetes keokuk (Hall)
USNM PAL380769 H. Williams
United States, Missouri, Newton County
USNM:PAL
Orthotetes chemungensis (Conrad)
USNM PAL33924
United States, Colorado
USNM:PAL
Derbyia carteri Cooper & Grant
USNM PAL151020I
United States, Texas, Brewster County
USNM:PAL
Derbyia informis Cooper & Grant
USNM PAL151056A
United States, Texas, Brewster County
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL151080C
United States, Texas, Brewster County
USNM:PAL
Derbyia bella Cooper & Grant
USNM PAL151025D
United States, Texas, Brewster County
USNM:PAL
Orthotetes kaskaskiensis (McChesney)
USNM PAL717014 G. Cooper
United States, Iowa
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151122M
United States, Texas, Brewster County
USNM:PAL
Derbyia profunda Cooper & Grant
USNM PAL151015K
United States, Texas, Brewster County
USNM:PAL
Derbyia scobina Grant
USNM PAL211704 R. Grant et al.
Thailand
USNM:PAL
Derbyia carteri Cooper & Grant
USNM PAL151020F
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030M
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151030L
United States, Texas, Brewster County
USNM:PAL
Derbyia complicata Cooper & Grant
USNM PAL153450B
United States, Texas, Brewster County
USNM:PAL
Orthotetes declivis Girty
USNM PAL179861 Girty 1901-10-02
United States, Texas, Culberson County
USNM:PAL
Derbyia scitula Cooper & Grant
USNM PAL153289D
United States, Texas, Brewster County
USNM:PAL
Orthotetes protensus Girty
USNM PAL314146
USNM:PAL
Derbyina jamesiana (Rathbun)
USNM PAL209005
Bolivia
USNM:PAL
Derbyia informis Cooper & Grant
USNM PAL151059A
United States, Texas, Brewster County
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314118
USNM:PAL
Derbyia nasuta Girty
USNM PAL153298
United States, Texas, Culberson County
USNM:PAL
Orthotetes kaskaskiensis (McChesney)
USNM PAL642045
United States, Iowa
USNM:PAL
Derbyia deltauriculata Hoover
USNM PAL220990 P. Hoover
Venezuela, Merida
USNM:PAL
Derbyia
USNM PAL729409 G. Cooper & E. Yochelson 1947-00-00
United States, Texas, Callahan County
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314138
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314117
USNM:PAL
Orthotetes subglobosus Girty
USNM PAL314123 Messler & Payne 1920-00-00
United States, Arkansas, Washington County
USNM:PAL
Derbyia pannucia Cooper & Grant
USNM PAL151122A
United States, Texas, Brewster County
USNM:PAL
Orthotetes sp a Gordon
USNM PAL163731
United States, Wyoming, Johnson County
USNM:PAL
Derbyoides marathonensis Cooper & Grant
USNM PAL150425G
United States, Texas, Brewster County
USNM:PAL
Derbyia scitula Cooper & Grant
USNM PAL153345
United States, Texas, Brewster County
USNM:PAL
Derbyia nasuta Girty
USNM PAL151038F
United States, Texas, Brewster County
USNM:PAL
Derbyia scobina Grant
USNM PAL211709 R. Grant et al.
Thailand
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL151080B
United States, Texas, Brewster County
USNM:PAL
Orthotetes stenopsis Henry & Gordon
USNM PAL314152 Cooper & Mesler 1931-00-00
United States, Arkansas, Washington County
USNM:PAL
Derbyia sp a Girty
USNM PAL179849 Girty 1901-10-02
United States, Texas, Culberson County
USNM:PAL
Derbyia texta Cooper & Grant
USNM PAL151177A
United States, Texas, Brewster County
USNM:PAL
Derbyia scobina Grant
USNM PAL211691 R. Grant et al.
Thailand
USNM:PAL
Derbyia sp 1 Girty
USNM PAL153467B
United States, New Mexico, Eddy County
USNM:PAL
Derbyia carteri Cooper & Grant
USNM PAL153283
United States, Texas, Brewster County
USNM:PAL
Derbyia Hoover
USNM PAL221002 P. Hoover
Venezuela, Merida
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL153294C
United States, Texas, Brewster County
USNM:PAL
Derbyia filosa Cooper & Grant
USNM PAL153290A
United States, Texas, Brewster County
USNM:PAL
Derbyia regularis McKee
USNM PAL102290
USNM:PAL
Derbyia texta Cooper & Grant
USNM PAL152616H
United States, Texas, Brewster County
USNM:PAL
Derbyia cincinnata Cooper & Grant
USNM PAL151139A
United States, Texas, Brewster County
USNM:PAL
Derbyia laqueata Cooper & Grant
USNM PAL151080D
United States, Texas, Brewster County
USNM:PAL
Derbyia informis Cooper & Grant
USNM PAL151062
United States, Texas, Brewster County