Clussijicalion of the Order Microcyprini. 323 



Family Pceciliidae. 



Synopsis of the Suhfamilies. 



I. Exoccipital condyles present ; anal fin of both sexes similar in 



position. 



A. Oviparous ; anal fin of both sexes similar in structure *. 



1. Teeth tricuspid ; parietals absent 1. t'l/prinodontince . 



2. Teeth conical or villiform. 



Parietals present ; pelvic fins present ; epipleurals 



simple 2. Fundulince. 



Parietals absent; pelvic tins absent ; epipleurals bi- 

 furcate or trifurcate 3. Orestiin<x. 



B. Viviparous ; anal fin of male with the first 5 or 6 rays short, 



stifl'and subequal, separated by a shallow notch from the rest 

 of the fin 4. Characodontince. 



C. Viviparous ; anal fin of male modified into an intromittent 



organ, the rays of the fin supporting the tubular prolongation 

 of the urogenital duct. 

 Eyes normal ; intromittent organ naked ; skull nor- 

 mal ; vertebrae 31 o. Jenynsiince. 



Eyes divided transversely ; intromittent organ scaly ; 



skull very depressed; vertebrae 46 to 53. ..." . 6. Anablepijice. 



II. Exoccipital condyles absent ; viviparous ; anal fin of male advanced 



and some of its anterior rays enlarged and produced. 



7. Poeciliince. 



1 . C YFRIKOBOyTINJE. 



Differ from the FundulinaB only in the tricuspid teeth and 

 the absence of parietals. Vertebrai 26 (in Lebias dispar). 



Cyprinodon and Jordanella from North Ameiica ; Lebias 

 and Tellia from Africa and Southern Europe. Some of the 

 species are marine. The Miocene Pachylebias, A. S. Wood- 

 ward, may be placed here. 



2. FUNDULIN^. 



Oviparous. Teeth conical or villiform. Parietals present. 

 Exoccipital condyles well developed. Epipleurals simple. 



The most generalized and the most widely distributed 

 group of the Poecilioids. None differs much from Goodea in 

 osteology, but Lamprichthys retains the basisphenoid, as in 

 the Cyprinodontiiise. 



The vertebrae number 28 to 41 (28 in Ilaplochilichthys, 



* Except in some species oi Fiaidi'h's in which the oviduct is produced 

 on the al fin. 



