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PATAGONIAN EXPEDITIONS: ZOOLOGY. 



STURISOMA Swainson. 

 Type : Loricaria rostrata Spix. 

 Range: Rio Paraguay to Magdalena 

 and Pacific slope of Panama and 

 Ecuador. 



Oxyloricaria Bleeker (barbata). 

 A I. Sturisoma gilntheri Regan, Regan, 299. 

 Loricaria rostrata Giinther, non Spix. 

 Habitat: Manacapuru; Xeberos. 

 2. Sturisoma robustum Regan, Regan, 300. 

 Loricaria rostrata Boulenger, non Spix. 

 Habitat: Paraguay. 



AS. Sturisoma lyra Regan, ..Regan, 300. 

 Loricaria rostrata Boulenger, non Spix. 

 Habitat: Rio Jurua. 



4. Sturisoma barbatum Kner, Regan, 301. 



Habitat: Rio Cuyaba. 



5. Sturisoma panamense Eigenmann & 



Eigenmann, Regan, 201. 



Loricaria rostrata Steindachner, non 



Spix; Loricaria aurea Steindachner. 

 Habitat: Rio Magdalena; Pacific slope 



of Panama. 



6. Sturisoma frenatum (Boulenger), 



Regan, 302. 



Habitat: Northwest Ecuador (St. Ja- 

 vier, 60 feet; Solidero, 350 feet; 

 Rio Durango, 350 feet). 



FARLOWELLA Eigenmann & Eigenmann. 



Type: Acestra acus Kner. 

 Range : Amazon and northward. 

 Acestra Kner, preoccupied. 



Ai. Farlowella gladius (Boulenger), 



Regan, 303. 

 Habitat: Rio Jurua. 

 2. Farlowella gracilis Regan, Regan, 303. 



Habitat: Magdalena Basin. 

 A3. Farlowella oxyrhynchus (Kner), 



Regan, 304. 

 Habitat: Rio Mamore; Upper Amazon; 



Paraguay. 

 A4. Farlowella kneri (Steindachner), 



Regan, 304. 



Habitat: Amazons of Peru and Ecua- 

 dor. 

 5. Farlowella aca (Kner), . . . .Regan, 304. 



Habitat: Venezuela. 

 A6. Farlowella amazonum (Giinther), 



Regan, 305. 



Farlowella carinata Eigenmann & Ei- 

 genmann. 



Habitat: Amazons. 

 A;. Farlowella gladiolus (Giinther), 



Regan, 305. 

 Habitat : Rio Cupai. 



NEOPLECOSTOMUS Eigenmann & Eigen- 

 mann. 



Type : Plecostomus microps Steindach- 

 ner. 



Range that of the single species. 

 Ai. Neoplecostomus granosus (Cuvier & 

 Valenciennes), Regan, 306. 



Plecostomus microps Steindachner. 



Habitat: Goyaz; Cayenne; Rio de Ja- 

 neiro; Rio Parahyba. 



Family CYCLOPID^. 



CVCLOPIUM Swainson. 1 

 Arges and Brontes Cuvier & Valencien- 

 nes ; Stygogenes Giinther. 



1 I have retained the species of this family as recog- 

 nized by Regan. Evermann & Kendall (Proc. Biol. 

 Soc., Wash., xviii, p. 91, 1905) think that many are 

 probably synonyms. 



I am not certain of the position of most of the 

 localities of this genus, whether on the Amazonian or 

 Pacific slope. I have taken it for granted that they are 

 from the Atlantic slope unless specifically stated that 

 they are from the Pacific side. 



Type: Cyclopium humboldtii Swainson. 

 Range: Mountain streams of northern 



South America on both slopes. 

 Ai. Cyclopium whymperi (Boulenger), 



Regan, 311. 



Habitat: Andes of Ecuador. 

 A2. Cyclopium eigenmanni (Regan), 



Regan, 312. 



Cyclopium cyclopium Putnam, non 

 Humboldt. 



