44 T. V. HODGSON. 



The anterior margin of the cephalon is arched forward on each side of the middle 

 line so as to form a more angular cleft than the usual crescentie curve. There are 110 

 spines nor any trace of the cephalic horns. Eyes well developed and lateral as usual 

 though not so prominent. Of the segments of the mesosome the first three vary but 

 little, the fourth is about half as long again as the first. These anterior segments all 

 possess a tubercle of varying size on the epimera, and the dorsum is irregularly 

 corrugated. 



The two anterior segments of the metasome are long and slender, the fusion of 

 the third with the urosome is more complete than usual and marked laterally by a 

 tubercular swelling of no great size. 



The urosome forms the greater part of the metasome and is rounded at the 

 extremity, marked in the middle line with a slender ridge which terminates before 

 the extremity in a blade-like spine. 



The first antenna is of the usual Arcturus type ; the first joint is short but 

 stout, having its outer margin expanded ; the two following are subequal and shorter ; 

 the last is about five times the length of either of the two preceding, and provided 

 throughout the greater part of its inner border with the normal sensory setae. 



The second antenna is long and slender, measuring some 57 mm. 



The first joint is very small and quite inconspicuous ; the second is longer, 

 though short, the proportions of the remaining joints and flagellum are approximately 

 as 2. 4. 12. 12. 21. All these joints are rather sparingly supplied with small 

 inconspicuous setae. The joints of the multi-articulate flagellum are long and slender, 

 each bearing a few small setae at the middle and distally. 



As there is only a single specimen the mouth organs have not been dissected. 

 The maxillipeds, however, as far as can be seen in situ, presents no special features ; 

 the epignath is about the average size and distinctly conical in shape. The appendage 

 is rather handsomely marked with large arborescent chromatophores. 



The first appendage of the mesosome differs but little from the usual type, 

 and is handsomely marked with the same large arborescent chromatophores. 

 The basis is long, furnished ventrally and distally with a fringe of long setae ; 

 the ischium is about half the length ; the merus is shorter and nearly round owing 

 to its lateral extremity projecting forward as a blunt point ; the carpus is rather 

 cup-like with a larger ventral than dorsal surface ; these three joints are well 

 provided with long setae ventrally. The propodus is large but not greatly 

 expanded, it is liberally fringed with long setae ; the dactylus is stout, considerably 

 increasing in stoutness from the base to near its distal extremity, when the dorsal 

 surface becomes abruptly curved downwards to form a finger-like process, and this 

 bears a stout claw and a smaller accessory ; the dorsal surface of this joint is well 

 provided with long setse, more especially in the area of the " cushion." 



The three following appendages are of the usual type ; the joints are smooth 

 without spines or tubercles, but the long setas are simple and arranged in serial 



