MODIFICATION OP THE EYE PEDUNCLES IN CYMONOMUS. 449 



tres court. Le dernier article de I'abdomen de la femelle est 

 triangulaire et arrondi a sou extremite. Les oeufs sout tres 

 gros et en petit nombre. Les orifices genitaux de la femelle 

 s'ouvrent sur Particle basilaire des pattes de la 3e paire." 



The species assigned by Milne-Edwards to tliis new genus 

 is C. quadratus, n. sp., from the West Indies, taken at 

 depths ranging from 175 to 500 fathoms. 



No figure was at this time published of C. quad rat us, the 

 fuller publication of the "Blake" Crustacea being deferred, 

 and subsequently accomplished (as noted below) by Prof. 

 Bouvier in collaboration with Prof. Milne-Edwards. 



In 1881 M. Milne-Edwards, in a summary account of some 

 dredging operations made in the Mediterranean {' Comptes 

 Rendus Acad. Sci.,' Paris, xciii, p. 879), refers to Norman's 

 species as"Cymonomus(Etliusa)granulatus (Norman) ," 

 and records it as occurring in a new locality, viz. the 

 Mediterranean. No figure was at this time in existence of any 

 Cymonomus, but in 1883 C. gran ulatus, Norman, appears 

 in the 'Recueil de figures des Crustacees nouveaux ou peu 

 connus,' produced by M. Alphonse Milne-Edwards, and, as 

 I believe, privately distributed. This was the first occasion 

 on which a figure of C. gran ulatus, or indeed of any 

 Cymonomus, was published. 



The drawings on this plate are reproduced in pi. xi of the 

 'Expeditions scientifiques du "Travailleur" et du "Talisman:" 

 Crustacees Decapodes,par A. Milne-Edwards et E. L. Bouvier,' 

 published in 1900. A drawing showing the frontal region of 

 the carapace from below, with the eye-stalks, antennules, and 

 antennee in position, has been re-executed, but the large 

 figure of the whole animal, seen from the dorsal surface, 

 is reproduced without modification. This is in some ways 

 to be regretted, since the eye peduncles have been removed 

 from the specimen before it was given to the artist for por- 

 traiture, and consequently two cavernous, deeply shaded arese 

 are represented, one on each side of the frontal rostrum, 

 between it and the large extra-orbital spine. The fact that 

 the specimen is incomplete is not mentioned in the explana- 



VOL. 47, PAKT 3. — NEW SERIES. F F 



