- 425 — 



Fli'eosloiiHis iiiai'<):ii'ilil'or l^eg^an. 



Twenty-lliree specimens 2 to 4 12 inches in 

 length to hase of caudal, of which twenty-one are 

 from the State of São Paulo and two without de- 

 cipherable data. Their détermination as marijan- 

 tifer rather than latiroslris depends on locality and 

 where one considers the vanishing point of keels 

 on the scutes. These two species are evidently close. 



Plecosioiiiiis macropss Eigenmann v*sc 

 Eigenmann. 



Three specimens 3 1/2 inches in length to base 

 of caudal from the State of São Paulo. 



Plecostoimis lueikeni Steindachner. 



Two specimens 4 i/4 Indies to base of caudal 

 from the State of Santa Gatharina. The eye is 

 contained 7 instead of 8 times in the head ; a 

 difterence to be expected froin the smaller size of 

 our specimens than the one described. 



Plecostoimis sc;ipliyeeg>s, new species. 



Type N.'' 7152, American Museum of Natural 

 History, from Cerqueira Cezar ( State of São Paulo ), 

 December, 1896. It is 35 rain, long to base of 

 caudal ; head 2.7 in this measure ; depth 5.6 ; eye 

 7.() in head; snout 1.7; interorbital 2.6; breadth 

 of head 1.2; depth of head 2.2; pectoral fin 1.4; 

 ventral fin 1.5; first dorsal raj" 2.0; adipose spine 

 4.5; lower caudal lobe 1.2; mandibular ramus 1,4 

 in interorbital; barbel very small, about 1/2 eye; 

 anal fin very small ; its height about equal to the 

 diameter of the eye. Dorsal wiih 8 rays ; its base 

 slightly greater than its distance from the adipose 

 fin ; caudal slightly eraarginate ; the lower lobe de- 

 cidedly the longer. Snout very broad and rounded ; 

 supraorbital riiu slightly raised ; supraoccipital bor- 

 dered posteriorly by a single scute ; scutes without 



