ÖFVERSIGT AF K. VETENSK.-AKAD. FÖRHANDLINGAR 18 94, N:0 3, 117 



A specimen from the creek between Lake Tvanhoe and 

 Formosa had scattered black »melanistic» spöts. Anal 10 or 11. 



The young ones have darker crossbars. 



Zygonectes chrysotiis GÜNTHER. Ditclies and ponds at Ar-- 

 cadia, De Soto Co. and at Toronto, Orange Co. 



Brownish olive witli darker crossbars. No spöts on dorsal. 

 Anal 9. Witli or without pearly spöts on the sides. Caudal 

 shorter than in Zyg. henshalli, stouter. 



Zygonectes craticula GOODE & Bean. (^Zygonectes notti 

 Agassiz?). In a creek between Lake Ivanhoe and Lake For- 

 mosa, Orlando and in the lakes themselves. 



In a lake near Lake Beauty, Orlando, in lakes round 

 Apopka. A lively little fish often swimming at the surface of 

 the water. The top of the head then shines golden. 



Gamhusia patruelis (Baird & GiRARD). This little min- 

 now is most abundant of all in fresh water. It is found in 

 creeks, in lakes and ponds, very often even in temporary pools, 

 why it is sometimes called »rainwaterfish». 



In Orange Co. in all waters I have seen. In ditches, ponds, 

 lakes etc. at Kissimmee, Osceola Co., at Arcadia, De Soto Co. 

 etc. etc. 



Already in april I found females with youngs in Orange 

 and De Soto Counties. 



In some places certain varieties are predominant for instance 

 Gamb. patruelis forma melanops in Lake Beauty not far from 

 Orlando. This lake has a rieh vegetation and rather dark water. 



In Clay springs and the sulphursprings round Lake Jessup 

 melanistic forras were not scarce. (Conf. Mollienesia). It seems 

 to be many more males than females Struck by this melanismus 

 which probably at least partly is due to the cheniical composi- 

 tion of the water. 



Girardinus formosus GiRARD. I found this species in a 

 good many waters for instance in Ferncreek and in ponds near 

 Orlando, in ditches at Oviedo, in small lakes at McDonald near 



