AGAssiz, 1844 217 



Placosteus Agassiz, I, XXIII; orthotype P. m.«andrinus Ag. (fossil); name only, 

 replaced in 1845 by Psammosteus Ag. 



Chelonichthys Agassiz, I, XXXIII; logotype C. asmussi Ag. (fossil); name only. 

 A synonym of Ichthyosauroides Kutorga. 



Glyptosteus Agassiz, I, XXXIV; orthotype G. reticulatus Ag. (fossil); name 

 only. A synonym of Bothriolepis. 



Psammolepis Agassiz, I, XXXIV; orthotype P. paradoxus Ag. (fossil); name 

 only, replaced in 1845 by Psammosteus Ag. 



Scaphodus Agassiz, I, XLIII; orthotype Gyronchus oblongus Ag. (fossil). A 

 synonym of Gyronchus. 



Pododus Agassiz, II, 83; orthotype P. capillatus Ag. (fossil) ; name only. Iden- 

 tified by Woodward, 1901, as a synonym of Mesolepis Young. 



Megalichthys Agassiz, II, 89, 154; orthotype M. hibberti Ag. (fossil). Not Mega- 

 LiCHTHYS Ag. 1836. Should apparently stand as Centrodus McCoy. 



Conodus Agassiz, II, 105; orthotype C. ferox Ag. (fossil); name only; preoccu- 

 pied as CoNODON Cuv. & Val., 1830. A synonym of Caturus Ag. 



Thrissonotus Agassiz, II, 128; orthotype T. colei Ag. (fossil) ; name only. Same 

 as OxYGNATHUs Egert. ; defined by Egerton, 1858. 



Microspondylos Agassiz, II, 139; orthotype M. escheri Ag. (no definition: shales 

 of Glarus). 



Cricodus Agassiz, II, 156; orthotype Dendrodus incurvus Duff, (fossil). 



Amblysemus Agassiz, II. 165; orthotype A. gracilis Ag. (fossil). 



Macropoma Agassiz, II, 174; orthotype M. egertoni Ag. (fossil) ; name only. De- 

 fined by Egerton, Mem. Geol. Surv., IX, No. 10, 1858, from which the name 

 should date. A synonym of Eurycormus Wagner, 1863, and of earlier date. 



Uronemus Agassiz, II, 178; orthotype U. lobatus Ag. (fossil). 



Hoplopygus Agassiz, II, 178; orthotype H. binneyi Ag. (fossil). A synonym of 



CCELACANTHUS. 



Gyrosteus Agassiz, II, 179; orthotype G. mirabilis Ag. (fossil); name only; val- 

 idated by Egerton, Phil. Trans., 1858, 883. 



Ctenolepis Agassiz, II, 180; orthotype C. cyclus Ag. (fossil). Undetermined 

 scales ; defined by Woodward, 1895. 



Periodus Agassiz, II, 201 ; orthotype P. koenigi Ag. A sjmonym of Pycnodus Ag. 



Gyronchus Agassiz, II, 202; orthotype G. oblongus Ag. (fossil). 



Acrotemnus Agassiz, II, 203; orthotype A. f.^ba Ag. (fossil). 



Colobodus Agassiz, II, 237; orthotype C. hogardi Ag. (fossil). Apparently a syn- 

 onym of AsTERODON Miinster. 



Phyllodus Agassiz, II, 238; orthotype P. toliapicus Ag. (fossil). 



Acanthoderma Agassiz, II, 251; logotype A. spinosum Ag. (fossil). Name pre- 

 ocupied. See Agoreion Gistel, 1847. 



Acanthopleurus Agassiz, II, 253; orthotype Pleura canthus serratus Ag. (fos- 

 sil). This name may be regarded as preoccupied by Acanthopleura, 1829. 



Rhinellus Agassiz, II, 260; orthotype R. furcatus Ag. (fossil), regarded as pre- 

 occupied by Rhinella Fitzinger, 1826; replaced by Ichthyotringa Cope, 

 1878. 



Glyptocephalus Agassiz, II, 264; orthotype G. radiatus Ag. (fossil). Name pre- 

 occupied, Gottsche, 1^35. A synonym of Bucklandium Konig. 



Chondrosteus Agassiz, II, 280; orthotype C. acipenseroides Ag. (fossil); name 

 only; validated by Egerton, Phil. Trans., 1858, 871. 



Nothosomus Agassiz, II, 292; orthotype N. octostychius Ag. (fossil) ; name only; 

 described by Egerton, Mem. Geol. Surv., 1858, Dec. IX, No. 6. An ally of 

 Pholidophorus. 



