MURENTD^. 95 



fin is not high, commences about half-way between the occiput and 

 gill-opening, and contains 350 rays to the apex of the tail. The 

 rays at the end of the tail are short, very slender, and much 

 crowded. The anal tin has been removed from the specimen. 



Mr. McGillivray says that the colour was a " nearly uniform 

 pale green, changing after death to dark brown. Several long in- 

 terrupted dark streaks run along the throat, which, together with 

 the neck, is minutely marked, for the most part perpendicularly, 

 with short waved striae of pale brown." 



Length, 93 .\ in. 



Australia. 



Oi3S. — The ^Ittrihie lineolee and M. flaveoUe of Lesson, are re 

 presented as having much higher dorsals. (La Coquille, Plate 11, 

 f. I and 2.) The Gymnothorax Wihoni of Schneider (p. -"JaU), which 

 is a New Holland species, locally known by the name of " Banning," 

 is ornam.ented with broad roseate spots. [Richardson.) 



169. Thyrsoidea irregularis. 



Thyrsoidca irregularis, Kaiip., Paris Museum. 



Brown, with large black spots, irregularly dispersed over the 

 body. Fins yellowish. Palatine teeth, 16 in the outer row, 7 in 

 the inner row; vomeiines, 10 in two rows, with an anterior and a 

 posterior larger tooth. 



Total length, 18-49 in. Length of fail, 9-43 iu. 



Brazils. (The Paris Museum has a specimen received in ex- 

 change from Geneva). 



Genus 32. LIMAMUR^NA, Kaup. 



Dingn. Abbreviated Thijrsodehut, whose hinder nostrils issue in 

 still longer tubes than those of Miincna Helena. 



Nasal teeth, 10-12; whereof the lateral ones are flanked by 

 toothlets that are scarcely perceptible. On the mesial line, 3. 

 Palatines biserial, but the inner row of is for the most part de- 

 fective, or falls wholly out. The outer row consists of 7 longer 

 ones, with 10 small ones, ensconced at their roots. Vomerines, 

 4-0 ; mandibulars, 9 bigger ones, and 14 lesser ones, in a single 

 series. 



Head elongated, with a more slender pointed snout. Front 

 nostril-tubes projecting over the lip ; hinder nostril-tubes a little 

 longer than the diameter of the eye. 13ody abbreviated ; dorsal, 

 commencing at the occiput. (Sometimes there are two pores 

 on the extremity of both jaws, prolonged into two short tubes, 

 and in the young fish the mandibular teeth are biserial at the 

 symphysis.) 



