SOUTH AMERICAN NEMATOGNATHI. 351 



D. 7; A. 7; head 4J. 



Two specimens .07-. 08 m. Quito. Prof. James Orton. 



293, Cyclopium giintheri, 



Stygogenes giintheri Boulenger, Ann. & Mag. Nat. Hist. Ser. 5, 



vol. 19, 348, 1887 (Colombia). 

 Habitat: Colombia. 



The description of this species would prove it to be a 

 very close relative of C. cyclopum differing from it in the 

 length of the head, which is contained 3J to the base of 

 the caudal. 



LXXI. ASTROBLEPUS. 



Astroblepus Humboldt, Observ. ZooL i, 19 (grixalvii). 

 This genus is known only from the very imperfect 

 decription by Humboldt. 



294, Astroblepus grixalvii. 



Astroblepus grixalvii Humboldt, Observ. Zool. i, 19, pi. vii; Cuv. & 

 Val. Hist. Nat. Poiss. xv, 349, 1840 (copied); Giinther, Cat. 

 Fish. Brit. Mus. v, 224, 1864 (copied). 



FAMILY VII. LORICARIIDJE. 



<^Siluroidefi Cuvier, Regne Animal ed. i, vol. ii, 199, 

 1817. 



=Goniodontes Agassiz, Gen.et Spec. Pise. Bras. 1, 1829. 



=Loricata Kner, Die Panzerwelse, 75, 1853. 



=Loricarioidei Bleeker, Nederl. Tijdschr. Dierk. i, 77, 

 1863. 



<^Hypostoinatina Giinther, Cat. Fish. Brit. Mus. v, 11, 

 1864. 



<Loricariidce Gill, Arrangement of Families Fishes, 

 19, 1872. 



=Loricariidai E. & E. Am. Nat. July 1888. 



Sides and back and sometimes the lower surface cov- 

 ered with bony plates which are sometimes provided 

 with teeth-like spines. Mouth wholly inferior, provided 

 with a broad disk-like lip. Maxillary bones thin, with 



