TREMOCTOPUS. 



131 



Yerany remarks that whilst it has the fades of Tremoctopus. 

 it does not possess the characters of that genus. This ma}' be 



on account of its young age. 



N. Atlantic Ocean; Sicily. 



T. DUBIUS, Souleyet. PL 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. GRACILTS, 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. 10CP TF., lat. 8 N., Pacific Ocean. 



T. HYALINUS. Hang. PI. 43. rigs. 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. 



D'Orbigny says : Without doubt the young of one of the 



species." 



Atlantic Ocean. 



T. QUOYANUS, Orb. PI. 44. figs. 1)1. 92. 



Body smooth, oblong, large; 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, 1C) mill. 



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



T. VIOLACEUS, Chiaje. PL 43, figs. 80-90 ; PL 44, figs. 93, 94. 



Body rather ovoid, truncated anteriorly, nearly smooth, 

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



