TREMOCTOPUS. 131 



Verany remarks that whilst it has tlie fades of Tremoctopus. 

 it does not possess the characters of that genus. This may be 



on account of its young age. 



N. Atlantic Ocean; Sicily. 



T. DUBIUS, Souleyet. PI. 43, figs. 80, 81. 



Body subovate, smooth; eyes large, prominent ; arms short, 

 unequal, palmate at the base. 



Length, 6 mill. 



This is also a juvenile form, not in condition for identification. 



Near Mauritius. 

 T. GRACILIS, Souleyet. PI. 43, figs. 82, 83. 



Body rounded, smooth; head small; eyes large, prominent; 

 arms graceful, the upper very long, lower short, connected by a 

 web. Phosphorescent and with metallic reflections when living. 



Length, 24 mill. 



Probably a young animal, but distinguished from the pre- 

 ceding species by its well-developed web. connecting all the arms. 



Long. 1060 w., lat. 8 N., Pacific Ocean. 



T. HYALTNUS. Hang. PI. 43, figs. 84, 85. 



Body short, broad, smooth, oval, larger before than behind ; 

 aperture very large ; head short ; eyes large, prominent, sub- 

 pedunculated ; arms unequal, not webbed, as long as the body ; 

 order of length 1. 2. 3, 4. Diaphanous, whitish marked with red. 



IVOrbigny says: "Without doubt the young of one of the 

 species." 



Atlantic Ocean. 

 T. QUOYANUS, Orb. PI. 44, figs. 91. 92. 



Body smooth, oblong, largo ; white, marked with red ; head 

 large, smooth ; eyes large, prominent, without eyelids, blue above ; 

 two aquiferous pores between the eyes and two below. Arms 

 elongated, unequal; order of length 1, 2, 4,3; two dorsal pairs 

 webbed together half their length. 



Total length, 42 mill. ; of body, 12 mill. ; length of arms 1, 24 

 mill.; 2, 22 mill.; 4, 20 mill.; 3, 16 mill. 



Lat. 240-26 JV., Long. 30 TF., Atlantic Ocean. 



T. VIOLACEUS, Chiaje. PL 43, figs. 86-90 ; PI. 44, figs. 93, 94. 



Body rather ovoid, truncated anteriorly, nearly smooth, 

 violet ; head short ; aquiferous pores, four on the back of the 



