634 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
als die Halfte der Eutfernung der Kierueuspalte vom After. Die Scliuautze spr’mgt 
iiber den Unterkiefer vor. Lange der Maulspalte £ der Kopflange. Auge ziemlich 
gross, melir als lialb so lang als die Scbnautze. Ziikne ziemlich gleicbraiissig klein, 
in doppelten Reiken in beiden Kiefern. Die Lauge der Brustflosse ist f der Kopf- 
lange. Riicken und Afterflosse sehr niedrig, die erstere fiingt iiber dem Endtheile 
der Brustflosse au. Die Korperlauge verbiilt sich zur Sckwanzlange = 2:3. Eiufiirbig 
braun, heller am Bauche. Ein Exemplar, 10 Zoll lang, von Callao (No. 21). Essclieint 
diese Art dein Ophichthys magnioculus verwandt zu sein, nuterscheidet sichaber durch 
seine Korperverhaltnisse. (Zweiter ichthyologiscker Beitrag nacb Exemplaren aus 
dem Museum Godeffroy, von Dr. Albert Giintlier, Journal des Museum Godeffroy, Heft. 
iy, p. 91, 1873). 
Our specimens have the head a little less than half the length of the 
trunk, and the pectoral tin about 3 times in head. 
Ophichthys dicellurus (Richardson), a Chinese species, has also been 
recorded from Coquimbo, Chile, by Dr. Gunther, Proc. Zool. Soc. Lon- 
don, 1881, 22, without description. Perhaps 0. callaensis was intended. 
76. OPHICHTHUS PARILIS. 
Ophisurus parilis Richardson, Voyage Erebus and Terror, 105, 1844 (West Indies); 
Kaup, Apodes, 14, fig. 8, 1856 (Brazil; Surinam; West Indies). 
Opliiclithys parilis Gunther, viii, 59, 1870 (Cuba; Bahia). 
Opkiclithys pauciporus Poey, Repertorio, n, 255, lam. 3, fig. 5, 1868; Giintlier, viii, 
60, 1870 ; Poey, Enumeratio, 154, 1875. 
Habitat: West Indies to Brazil. 
Etymology : Parilis , like. 
This species is known to ns only from descriptions. It appears to 
differ from O. gomesi in the longer nasal tubes, and especially in the 
smaller eye. 
We refer O. pauciporus Poey to the synonymy of O. parilis with some 
doubt. Poey’s figure shows the small eye of O. parilis, and rather large 
nasal tubes. The tail in pauciporus is said to be twice as long as the rest 
of body, as in parilis \ In pauciporus the insertion of the dorsal is said 
to be behind ( mas atras) the end of the pectoral. It is before the tip in 
parilis , but this is likely either an error or an individual variation. No 
other difference appears in the descriptions. 
Genus 16.— MYSTRIOPHIS. 
Mystriophis Kaup, Apodes, 10, 1856 ( rostellatus ). 
Echiopsis Kaup, Abhandl. Naturli. Verein., 1. c., 13 (intertinctus) . 
Crotalopsis Kaup, Abhandl. Naturwiss. Verein. Hamburg, Iv, 12, 1860 ( punctifer ). 
Macrodonophis Poey, Repertorio Fis. Nat. Cuba, ii, 251, 1867 ( mordax ). 
Scytalichthys Jordan & Davis, subgen. nov. ( miurus ). 
Type : Opliisurus rostellatus Richardson. 
Etymology: Mvarpiov, a spoon, from the form of the snout of the 
typical species ; otpis, snake. 
This genus as understood by us contains about four species distin- 
guished from Ophichthus by the canine teeth and large mouth. The 
species have not much in common, and should perhaps be ranged in 
three different genera, unless all are replaced in Ophichthus. 
