6. MALTHE. 201 



Malthea longirostris, Cuv. &■ Val. xii. p. 450. pi. 865. 



nasuta, Cuv. 8f Val. xii. p. 452 (not M. cubifroiis, Richards.). 



notata,(7Mr. Si Vol. xii. p. 453, cop. by Dekay, I. c, ; Castehi. Anim. 



nouv. Amer. Sud, Poiss. p. 26. pi. 12. fig. 4. 



angusta, Cuv. Sr Val. xii. p. 454. 



? Maltliea truncata, Ctiv. 4" Val. xii. p. 454. 



Malthea guacucuja, Custeln. I. c. 



Skeleton : Rosenth. Ichthyot. Taf, pi. 19. fig. 2 (Lophins histrio). 



D. 4. A. 4. V. 1/5. Vert. 19. 



The distance between the anterior angles of the orbit is much less 

 than that between the hinder ones. Forehead produced into a more 

 or less elongate subconical process ; the groove for the rostral ten- 

 tacle is higher than broad. 



Atlantic coasts of Tropical America, extending northwards to the 

 latitudes of Newfoundland. 



The snout varies in length ; it is — 



a, one-sixth of the total length : Malthea longirostris, C. & V. 

 a. Fine specimen. Para. Presented by J. P. G. Smith, Esq. 

 h. Skeleton. Para. Presented by J. P. G. Smith, Esq. 



/3, one-seventh. 

 c-f. Adult and half-growTi : stuffed. 

 5[. Half-grown : in spirits. 



y, one-eighth. 



h. Adult. Brazil. 



i. Half-grown. From the Collection of the Zoological Society. 



Tc-j[>. Adult and half-grown : stuffed. 



h, one-ninth or one-tenth : Malthea vespertilio, C. & V. 



q, r. Half-grown : stuffed. 



s-x. AdvJt and half-grown: stuffed. — One of these specimens is 

 somewhat more spiny than the others, each of the conical tu- 

 bercles having a cluster of small spines at the top. 



e, one- thirteenth : Malthea nasuta, C. & V. 

 y, z. Adult : stuffed. Caribbean Sea. 



a. Young. Demerara. Purchased of Mr. Snellgrove : Malthea 

 notata, C. <fe V. 



^, one-eighteenth. 

 /3, y. Adult. 



T], one-twentieth to one-twenty-fifth : Malthea angusta, C & V. 

 S. Adult: stuffed, 

 e, ^. Half-grown. Brazil. 



Skeleton. — The bones are rather soft, light, striated — an incon- 

 siderable quantity of calcareous matter being deposited in them. 

 The cranial and facial portions of the skuU are not of great extent, 

 the breadth of the head being caused by the great development and 



