202 THE SCHIZOPODA. 



Remarks. — Illig states (Zool. Anz., 30, 1906, p. 202) that the endopod of 

 first pair of thoracic legs is wanting in E. fowleri and in his two new species 

 of Euchaetomera, among which is the above-named E. limbata. As to E. tenuis 

 Sars = E. foivleri Holt and Tatt. his statement is incorrect; the endopod is 

 well developed both in the maxillipeds, the gnathopods, and in all six pairs of 

 real legs; I am inclined to think that the same is the case in his two other species. 



Distribution. — Sars's type was captured in the South Pacific off the coast 

 of Chile. The "Siboga" secured it at two places in the Indian .\rchipelago. 

 According to several authors (Ortmann, Tattersall, Holt and Tattersall, and 

 myself) the species is widely distributed in the tropical and northern temperate 

 Atlantic, in its eastern part going northwards to West of Ireland; and it has 

 been taken in the Western Mediterranean also. 



21. Euchaetomera plebeja, sp. nov. 

 Plate 3, figs, la-lb. 



Sta. 4.583. Oct. 11, 1904. Lat. 22° 45' N., long. 110° o' W. 300 fms. to surface. 1 immature speci- 

 men. 



Sta. 4676. Dec, 5, 1904. Lat. 14° 28.9' S., long. 81° 24' W. 300 fms. to surface. 1 male, (Type), 

 perhaps not quite adult. 



Description. — Allied to E. tenuis G. O. S. and E. oculata H. J. H. — The 

 frontal plate (fig. la) shaped as a low, broad triangle with the two sides a little 

 concave and the \'ertex moderatelj' broadly rounded. — The eyes about as thick 

 as in E. tenuis, but the posterior area with acting facets is much larger, being 

 longer than broad and the distance between the anterior and the posterior 

 area at the outer margin distinctly less than half as long as the outer margin 

 of the posterior area, while in E. tenuis that distance is about as long as the 

 whole outer margin of the posterior area which is shorter than broad. — The 

 antennal squama is Hve times as long as broad, with the outer margin almost 

 or quite straight, no external tooth and the terminal lobe beyond the most 

 proximal outer seta a little longer than broad. — The rami of the uropods (fig. 

 lb) broader in proportion to length than in E. tenuis. — Telson somewhat broader 

 than long, otherwise as in E. tenuis. 



Length of the male 5 mm., but the specimen is perhaps not quite full grown. 



Remarks. — E. plebeja is instantly separated from E. tenuis by the much 

 longer posterior dark area of the eyes and by the at least nearly straight outer 

 margin of the antennal squama. E. oculata differs from E. plebeja by having 

 a very conspicuous, somewhat narrow frontal plate, bj' considerably thicker 

 eyes and by having the antennal squama only three and a half times as long 

 as broad. 



