regard to the ornamentation of the carapace and to the form of 

 the rostrum, but also to the relative length of the feet, thick and 

 short in the American species, long and slender in the Euro- 

 pean." 



It is unfortunate that Milne-Edwards and Bouvier seem to be 

 unaware, not only of Alcock's work in 1899, but also of his earlier 

 work in 1895 and 1898, so that they give no direct opinion with 

 respect to the species which he includes in the genus Scyramathia. 

 These are 5. piilchra (Miers), of which Anamatkia livermorii, 

 Wood-Mason, is made a>ynonym ; S nvi rs-andersoni, Ps\c.oc\i\ 

 S. beauchampi (Alcock & Anderson) ; S- globiilifcra (Wood- 

 Mason); 6". vehiiina (Miers). It may, however, be inferred that 

 the French authors would not accept these species, for the recep- 

 tion of which Alcock's definition of the genus is framed at various 

 points differently from theirs. He speaks of the carapace as 

 " armed either with tubercles, or with long spines much like 

 those of Anamatkia in their uniform size and definite arrange- 

 ment," but the French definition is explained to require that some 

 of the spines should be low tubercles, generally truncate at their 

 extremity, as a matter of fact the low tubercles belonging to S . 

 occidcntalis (Faxon) and the flattened protuberances to S. carpen- 

 tcri (Norman)- That the palms of the chelipeds in the adult male 

 are " broadened " is applicable to some of Alcock's species, but 

 not to 5". carpenteri, and whereas, according to Alcock, the 

 mobile portion of the second antennse is " freely exposed on 

 either side of the rostrum.'' in the French definition, as we have 

 seen, it is partially concealed. 



The species about to be described is so closely allied to 6'- 

 carpenteri that there can ])e no hesitation about placing it in the 

 same genus. 



Scyramathia iiertwtgi, DoRem. 



1900. Scyramathia Hertivigi, Dolflein, in Chun's Aus den Tiefeni 

 des Weltmeeres, fig. on p. 497. 



Plate 6. 



The rostral horns are only one-fourth of the total length of the 

 carapace, being therefore much shorter than in ^'^ carpenteri, with 

 which the dorsal ornamentation shows much in common. Down 

 the centre are placed at intervals a minute spine, a long, narrow 

 tabular elevation, connected by a very faint carina with a longer 

 and much broader table, widest in front, and lastly a rugosity on 

 the peak of the dorsal margin. The minute spine is flanked by a 

 pair of ridge-like tubercles, the narrow table by two broad ear- 

 shaped tables, the broad tables by two small oval tables, a strong 



