IV. Pisces für 1897. 
Trichomycterus cordovensis Weynb. Boulenger (5). 
Trichomyceterus borellüi n. sp. Boulenger 5). 
Pygidium Schmidti n. sp. Berg. 
Pygidium spegazzinii n. sp. Berg. 
Pygidium riojanum n. sp. Berg. 
Scopelidae. 
Bathypterois atricolor Alcock. Aleock. 
Argyropelecus olfersii Cuv. Collett (3). 
Scopelarchus guentheri Alcock. Alcock. 
Cyprinidae. 
Catostomus arizonae n. sp. Gilbert u. Scofield. 
Cyprinus carpio L. Sehiemenz. Daday. Garbini. Josephy (2). 
Oyprinus kisaibeli Reis. Daday. 
Carassius vulgaris Nils. Daday. Sundvik. 
Carassius bucephalus Heck. Daday. 
Labeo bottegi n. sp. Vineiguerra. 
Apiostoma n. g. (Apiorrhynchus) Apiostoma zarudnyi n. sp. Nikolsky. 
Capoeta fusca n. sp. Nikolsky. 
Capoeta nudiventris n. sp. Nikolsky. 
Capoeta gibbosa n. sp. Nikolsky. 
Barbus. Pfeifer. 
Barbus aphya Bloch. Hilgendorf. 
Barbus albicans. Steindachner. 
Barbus gananensis. Vineiguerra (2) 
Barbus graecus n. sp. Steindachner. 
Barbus ruspolüi n. sp. Vineiguerra (1). 
Barbus anoplus n. sp. Weber. 
Barbus viviparus n. sp. Weber. 
Barbus breijeri n. sp. Weber. 
Barbus fluwviatilis Ag. Daday Buxbaum. 
Tinca vulgaris Cuv. Daday. Greve (2. Levi. 
Gohio fluviatilis Cuv. Mojo. Daday. 
Gobio uranoscopus Ag. Daday. 
Rhodeus amarus Ag. Daday. 
Abramis brama L. Daday. Strodtmann. 
Abramis ballerus L. Daday. 
Blicca bjorkna L. Daday. 
Spirilinus bipunctatus Heck. Daday. 
Alburnus alborella. Garbini. 
Alburnus mento Ag. Daday. 6atti. 
Alburnus lucidus Heck. Daday. Buxbaum. Strodtmann. 
Sardinius erypthrophthalmus L. Daday, Buxbaum, Strodtmann. 
4* 
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