154 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



the anterior lobes of the 6th and 7th somites are sh'ghtly or scarcely 

 marked, the posterior lobes are again intermediate in size and direction, 

 more or less intermediate between those of the 2 nearly related species. 



The submedian carinae of the 5th and 6th abdominal somites are 

 posteriorly spined, as are the intermediates of the 4th, 5th, and 6th, the 

 3rd to 6th laterals inclusive, and all the marginals. 



Denticles of the telson are 3, 10, 1 ; there is no prelateral denticle, the 

 prelateral carina runs little more than halfway to the tip of the lateral 

 tooth; at about this halfway point the carina that is continued to the 

 extremity of the lateral tooth begins; the marginal teeth of the telson 

 are of good size and sharp, with laterals a little exserted and about as 

 long as submedians and both a little shorter than the intermediate teeth, 

 and thus, except for the prelateral angle or spine of the latter, more 

 like laevis than hieroglypha. At about % the length of the median carina 

 of the telson from the extremity of the terminal tooth or spine, a small, 

 shallow punctation more or less inconspicuously interrupts the crest of 

 the carina. 



Color: In coloration or arrangement of the chromatophores our 

 species is not unlike hieroglypha. The chromatophores, although generally 

 sparsely scattered, are on the carapace aggregated in a line along the 

 median carina, the gastric grooves, the proximal half of the intermediate 

 carinae, the whole of the lateral carinae, and the reflexed portions of the 

 marginal ones, as well as along the posterior margins of all the free 

 somites behind the 5th thoracic, except the 6th abdominal. On the telson 

 the chromatophore arrangement bears a striking resemblance to that 

 found in hieroglypha, which Kemp says is unlike any other species; 

 however, hieroglypha, as figured, has neither the 2 pairs of isolated spots 

 either side of the median carina of the telson near its posterior extremity 

 nor the little band of 6 more or less coalescent chromatophores around 

 the hinder end of the median carina beneath the terminal spine, the latter 

 appears also to have been somewhat dark colored toward its tip in life 

 in our species. 



