33. plaqusia. 491 



Plagusia tessellata, Quoy ^ Gaim. Voy. Uran. Zool. p. 240 ; Ouich. in 



Ramon de la Sagra, Hist. Cuba, Poiss. p. 169. 

 Aphoristia omata, Kaup, I. c. 



D. 96. A. 80. C. 10. V. 4. L. lat. 95. 



Ventral fin contiguous with the anal. A small nostril above the 

 upper lip, in front of the lower eye *. Eyes subcontiguous, the upper 

 somewhat in advance of the lower. Lips not fringed. The length 

 of the snout is one-fourth of that of the head. The height of the 

 body is contained thrice and three-fourths in the total length, the 

 length of the head five times and three-fourths. Brownish, uniform 

 or with irregular dark cross -bands. 



Atlantic coasts of tropical America. 



a-h. Fine specimens. San Domingo. Purchased of Mr. Cuming, 

 c. Adult : skin. Jamaica. From Dr. ParneU's Collection. 

 d-e. Adult and half-grown : not good state. From the Haslar Col- 

 lection. 



33. PLAGUSIA. 



Plagusia, pt., Cuv. JR^gne Atiim. 



Plagusia, Kaup in Wiegm. Arch. 1858, p. 108. 



Eyes on the left side ; pectorals none ; vertical tins confluent. 

 Scales ctenoid, small ; lateral line on the left side double or triple. 

 Upper part of the snout produced backwards into a long hook, cover- 

 ing the mandible ; mouth unsymmetrical, rather narrow ; lips of the 

 coloured side with tentacles ; teeth minute, on the right side only. 

 One nostril, on the left side, before the angle of the lower orbit ; 

 none between the eyes. GUI- opening very narrow. 



East Indies. 



1. Plagusia marmorata. 



? Plagusia dipterygia, Riipp. Atl. Fische, p. 12.3. taf. 31. fig. 3. 

 Plagusia marmorata, Bleek. Verh.Batav. Genootsch.xxiv. P/ewron. p. 20, 

 or Natuurk. Tydschr. Nederl. Ind. i. p. 411. 



D. 99-106. A. 75-85. C. 10. V. 4. L. lat. 100. 



The height of the body is more than one-fourth of the total length, 

 the length of the head two-ninths. Two lateral lines on the left side, 

 separated by seventeen longitudinal series of scales at the point of 

 their greatest distance. The length of the snout is two-fifths of that 

 of the head. Rostral hook very long, extending far behind the lower 

 eyt. Brownish, finely marbled with dark brown. 



? Eed Sea. East Indies. 



a. Fine specimen. Amboyna. Purchased of Mr. Frank. 

 6. Adult. East Indies. Presented by General Hardwicke. 

 c. Adult. From the Haslar Collection. 



* Kr. Kaup speaks of an upper nostril between the eyes, as in his genus Arelia. 

 I can only find a small papilla without opening in front of the interorbital space, 

 which is exceedingly narrow 



