101 Misce/Ianeoufi. 



imperfect for determination, such specimen being from the 

 same locality and horizon as the holotype or lectotype of 

 the original species. 



Typical Specimexs (Icotypes). (tt^os, what is like*) • 



Material which has not been used in literature, but serves a 

 purpose in identification. 



Topotiipe { t,t. j. A specimen of a named species from the locality 



of theholotype or lectotype — in palocontology from the same 

 locality and horizon. 



Metatijpe (m.t. ]. A topotype identified by the nomenclator himself. 



Idiotype f i.t. j. A specimen identified by the nomenclator 



himself, but not a topotype. {^itius, one's own.) 



Homoeotype (vice Homotijpe, preoccupied) i h.t. j. A specimen 



identified by a specialist after comparison with the holotype 

 or lectotype. (ofiows, resembling.) 



Chirotype ( x. t.i. A specimen upon which a chironym is based. 

 (Chironym, a MS. name, Coues, 1884.) 



In addition to the above we have the use of the word " type " in 

 connexion with genera — a given species is the type of the geniis. 

 The classification of such types is as follows : — 



Types of Genera {Geiiotypes). 



Genoholotype. The one species on which a genus is founded ; 



of a series of species on which a genus is founded, the one 



species stated by the author to be " the type." 

 Genosyntype. One of a series of species upon which a genus is 



founded, no one species being the genoholotype. 

 Genolectotype. The one species subsequently selected out of 



genosyntypes to become " the type.'" 



* (iKoi (gen. eiKOTos), eiKo — for f'lKoro, — to make Icotype for euphony. 



