246 ' Souiher/i Cross. 



Mandible. Cutting edge forms a stout blunt tooth, molar 

 expansion small. Palp three-jointed, first joint fairly stout, the 

 second rather more than half the size, setose laterally and distally, 

 the distal setae being long. The last joint is about the same size, 

 but more slender, and setose along its entire length on one side. 



First maxilla. Outer lobe a slightly curved blade, armed at the 

 extremity with some half dozen or more teeth. Inner lobe straight, 

 slender, and tapering, the extremity provided Math two long curved 

 setae. 



Second maxilla. Inner lobe comparatively broad, rounded at the 

 extremity, where it is armed with stout setae. Two, near the inner 

 extremity, are conspicuously different, have subsidiary setae on 

 one ( ?) side. The outer lobe and palp bear long spinous setae ; they 

 are all sub-equal in length. 



Maxillipede. Masticatory lobe long and narrow, slightly curved 

 outwards distally. The extremity forms a blunt point, and there are 

 two or three small teeth a short distance from it ; behind these again 

 is a small tuft of setae. Palp of five joints, of which the middle 

 three possess a digitiform lateral process, setose at the extremity. 

 The terminal joint is finger-like, and also setose distally. 



Thoracic appendages. In these there is nothing specially striking. 

 In the first, the basal joint is nearly half the length of the entire 

 limb, the remaining joints are short and stout, the meros being 

 laterally expanded outwards, and the inner margin of the meros, 

 carpus, and propodos bear about a dozen long spines and numerous 

 very fine ones, which latter also occur on the dactylus. Tlds 

 last joint bears a stout claw, a small accessory, and two strong 

 setae. 



In the following appendage the joints, except the basal, are much 

 longer, and the inner margin is provided with a series of small spines 

 with an occasional large one. 



The others are sub-similar, but longer. 



Pleopods. Endopodite obovate, with long plumose setae on its 

 inner and distal margin. Exopodite triangular, outer margin straight, 

 and till near the extremity with fine setae, near the extremity and on 

 the inner margin these become long and plumose. 



Seven specimens were taken by the dredge off Cape Adare in 

 eight fathoms. Temperature, 30° Fahr., January 17, 1900. Only 

 one of these, the specimen figured, has the abdomen so ornate ; in 

 the others the spine is absent, and the terminal notch is not so 

 conspicuous. 



