I 



2 lO 



In the young specimen from Stat. 71, finally, the 2"^ joint of the antennular peduncle is only 

 twice as long as thick and just as long as the 3-: this difference from the two 

 other specimens may be caused by its young age or it may be a variation also known in 

 t^roc. cafiahculata (S. Kemp, 1. c). 



In the specimen from Stat. ,64 that has lost the scaphocerites, the e.xternal ma.xillipeds 

 ex end by the ultimate and half the penultimate joint beyond the distal extremity of the anten- 

 nular peduncle; in the female from Stat. ,., they reach by the terminal and two-fifths the 

 penultimate jonU beyond the scaphocerite. which is b.t a trifle longer than the antennular 

 peduncle. In the specimen from Stat. ,64 the antepenultimate joint is 5,5 mm. long, the penul- 

 fmate i S mm., the ultimate . mm., .so that the two last jomts measure together sli/htly 

 more than two-thirds the antepenultimate joint, and the same proportion is shoL by 

 the young female from Stat. ,^,^ in which the antepenultimate joint is 4,3 mm. Ion. the 

 penultimate 1,56 mm. and the ultimate 1,4 mm., though here the terminal joint appears a little 

 shorter than the penultimate. According to r>K H... the two last joints should be together 

 half as long as the antepenultimate, but Dr. Tesch inforn.ed me that in the dr^■ type specimens 

 the two last jonus measure together a little more than five-eighths the antepenultimate and 

 hat they are larger than in ,.k H.v.vx s figure on Plate X of his work, so that he believes this 

 hgure to be not quite e.xact; unfortunately in the type preserved in spirit the external maxil- 

 Jipeds are lost. 



In the specimen from Stat. 164 the right chelate peraeopod of the i-s. p,;, ,,,,,,, ,^ 

 the middle of 3- antennular article, while the left simple foot reaches by the dactylus beyond 

 ■t. he carpus of the chelate leg has a stou t sh ape, being only about one and a half 

 as long as broad or thick distally, when looked at from above; it is nearly as Ion. as 

 the fingers, but both carpus and fingers are a little shorter than the palm. The cylindnc.l 

 carpus o the simple foot is as long as that of the chelate, but almost twice as Ion., as 

 thick; the propodus, nearly 4-times as long as broad proximally and narrowing distairy is 

 almost tw,ce as long as the carpus and the curved dactylus measures one-third of the propodus 

 The right leg of the ^n^' pair is nearly :; mn.. long in the specimen from Stat. 164 

 more than half as long as the body, and reaches by the whole carpus and chela beyond the 

 antennular peduncle; the merus is subdivided into 15, the carpus into 45 segments; the chela 

 IS very small, one-th,rd longer than the last segment of the carpus, but less broad and the 

 dactylus IS strongly curved; the left leg is wanting. In the specimen from Stat. 313 the ri.ht 

 leg resembles tnat of the preceding .specimen, but the number of the segments both of me^us 

 and carpus IS a litde larger; the much shorter and thicker left leg reaches by the chela 

 and one-thn-d the carpus beyond the antennal .scale, the merus of this' leg has . or 

 6 segments, of which the .^^ or proximal one is half as long as.the joint and as long as the 

 fol owing combined, the carpus has 17 joints; chela larger than in the right leg, more than 

 one and a half as long as the last joint of the carpus, fingers gapin. shorter than the 

 palm, dactylus not so strongly curved as in the other leg. According to nn Ha.n the left 

 leg should not reach beyond the antennal scale, but Dr. Tesch wrote me that in the type 

 specimen, preserved in spirit, it extends beyond the antennal scale as far as the scale is 



