AGASSiz. 1844 217 



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

 replaced in 1845 by Psammostf.us Ag. 



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

 .\ synonym of IcHTHVosAUROtDts Kutorga. 



Glyptosteus .\gassiz, 1, 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 I84S by Psammosteus Ag. 



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

 synonym of Gvronxhl's. 



Pododus .•Vgassiz, II. 83; orthotype P. capillatus Ag. (fossil); name only. Idcn- 

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



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

 I.1CI1THYS Ag. 1836. Should apparently stand as Centrouus 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. colki Ag. (fossil); name only. Same 

 as OxvGNATHUs Elgert. : defined by Egerton, 1858. 



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

 of Glariis ). 



Cricodus .Agassiz, II, 156; orthotype Uendrodus incurvus Duflf. (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. Sun'., IX, No. 10, 1858, from which the name 

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



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



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



ClF.LACANTHUS. 



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

 i<latcd by Egerton, Phil. Trans., 1858, 883. 



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

 scales ; defined by Woodward, 1895. 



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



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



Acrotemnus .Agassiz, II, 203; orthotype .A. faba Ag. (fossil). 



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

 onym of .Asterodon Miinstcr. 



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



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

 • M-iipicd. Sec .Agoreion Gislcl. 1847. 



Acanthopleurus Agassiz, II, 253; orthotype Pleuracanthi-s skrrati's .Ag. (fos- 

 sd ) This name may be regarded as preoccupied by .Acantiiopleura, 1829. 



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

 (ifciipicd by Kiiin'ella Kitzingcr, 1826; replaced by Ichthyotringa Cope, 

 1H7S 



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

 occupied. Gotlschc. 1835. .A synonym of RucKLANniUM Konig. 



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

 only; v.ilidatcd by Egerton. I'hil. Trans., 1858, 871. 



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

 described by Egerton. Mem. Gfol Surf . 1858, Dec. IX, No. 6. An ally of 

 Pholidophorus 



