REPORT ON THE CRUSTACEA MACRURA. 



335 



The accompanying figure is slightly reduced from a drawing of this specimen made 

 by Suhm when the animal was fresh, and was probably the first specimen ever captured 

 of this genus. It has a small prominence on the middle of the fifth somite of the pleon 

 (more clearly represented in the author's drawing than in the woodcut), which evidently 



Fig. 48.— " Decapoden. x2 nat size, male specimen. Journal 2Sth of April 73, No. 2. Close to Sombrero, W. I., 4.10 

 fathoms, 15 March 73, nat. size 80 mm. ; a, mandible ; b, 3d maxilliped ; c, 1st joint of first pair of abdominal feet with 

 small leaf-formed appendage at the inner side." MSS. Willemoes-Suhm. Reduced one-third. 



is the remains of the long spinedike tooth characteristic of this species, and in all other 

 respects it appears to correspond closely with the eastern specimens. Although it is the 

 only specimen recorded from the Atlantic, yet since it is represented in the Pacific and 

 Eastern Archipelago we may assume it to be as freely distributed as some of the allied 

 species. 



Bentliesicymus iridescens, Spence Bate (PI. LVI. figs. 1,2; PI. LVII. fig. 3). 



Benthesicymus iridescens, Sp. B., Ann. and Mag. Nat. Hist., loc. cit. 



Rostrum short, pointed, but not sharply, laterally compressed, dorsally crested, armed 

 with one small tooth rather behind the orbital margin, and a small point indicative of 

 another tooth on the gastric region. There is no tooth on the dorsal surface of the pleon, 

 the posterior margin of the fourth somite of the pleon is smooth, and the telson nearly 

 as long as the inner ramus of the rhipidura. 



The ophthabnopod is longer than the rostrum and terminates bluntly, carrying two 

 unequal flagella. 



The first pair of antennas has the first joint of the peduncle a little longer than the 

 ophthalmopod ; the stylocerite is scarcely so long, but reaches nearly as far as the 



