347 



Muracna polyzon'a Klunzinger, Verb. zool. bot. Ges. Wien XXI. 1871, p. 617. 

 Echidna tritor Vaillant & Sauvage, Revue & Mag. Zool. 1875, P- 2 &7. 

 Muraena polyzona Day, Fishes of India 4. 1878 1888, p. 673. 

 Echidna zonata Fowler, Proc. Acad. Nat. Sc. Philadelphia 1900, p. 495. 

 Muraena polyzona Steindachner, Abh. Senckenb. nat. Ges. XXV. 1901, p. 457. 

 Echidna zonophaca Jordan & Evermann, Bull. U. S. Fish. Comin. XXIT. (1902) 



1904, p. 167. 



Echidna leihala Jenkins, Ibid. p. 428. 

 Echidna vine fa Jenkins, Ibid. p. 429. 

 Echidna obscura Jenkins, Ibid. p. 430. 

 Echidna psalion Jenkins, Ibid. p. 431. 

 Echidna psalion^ obscura^ zonata, zonophaca^ leihala^ Jordan & Evermann, Ibid. 



XXIII. (1903) 1905, p. 106 109. 



Echidna tritor Jordan & Snyder, Ibid. XXVI. (1906) 1907, p. 208. 

 Muraena polyzona Gunther, Fische d. Sttdsee, Heft IX. 1910, p. 422. 

 Echidna tritor Kendall & Goldsborough, Mem. Mus. Comp. Zool. Harvard Coll. 



XXVI. 1911, p. 248. 

 Echidna sativagei Fowler, Proc. Acad. Nat. Sc. Philadelphia LX1V. 1912, p. 30. 



Height 15 18; head 7 7.4, 2.22.7 in trunk; head and 

 trunk somewhat longer or shorter than tail. Eye 8 10, some- 

 what less than half length of snout. Snout 5.5 6 in head; 

 cleft of mouth more or less than thrice in length of head, 

 reaching behind eye. Dorsal 

 beginning before gillopenings, 

 its height much less than half 

 height of body. Maxillary teeth 

 conical, in two series, much 

 smaller than the vomerine teeth. 

 On the intermaxillary plate ob- 

 tusely conical, when young in 

 an outer series enclosing a mesial 

 series of 3 larger teeth, in old 

 specimens more molarlike and Fi S- 16 9- Dentition of Echidna polyzona 

 in an irregular group; on the ^ Rich ' ) - a intermaxilla T, "' maxillary, 



ma mandibulary, v vomerine 



vomer stout and granular, m teeth y 



young specimens in 2 series, 



increasing later on in number and forming a pear-shaped group 

 reaching much farther than the maxillary teeth and composed 

 posteriorly of about 5 series. Mandibulary teeth in 2 series, 

 increasing in old specimens posteriorly into 3 series, the outer 

 series conspicuously smaller. Mostly dark brown with 24 29 

 narrow white rings, produced on fins, or whitish with brown 

 rings according to prevalent colour. The rings may be inter- 

 rupted or may nearly vanish, except on the end of the tail, 



