307 



peduucle, scale of scai)hocerite a little longer thau median article, 

 outer margin terminatiug iu a slender spine. Basal article of 

 exterual maxillipedes almost 6 times as long as broad. 



Cbelipedes of the female feeble, resembling those of A. acqualis 

 (Coutière, Les Alphéidae. 1899, p. 193, Fig. 233), but the mero- 

 podite longer, 5 times as long as thick at distal extremity, and 

 raeasuring two tbirds the lengtb of the chela; its distal angles 

 obtuse. Palm without grooves, only a little shorter than the 

 fingers. Lengtb of cbelipedes almost two fiftbs the lengtb of 

 the body. 



First segment of carpus of 2ud legs twice as long as the 2nd 

 and as the 5th that are equal and that are a little longer than 

 the 3rd wbich is as long as the 4th. ; chela as long as Ist seg- 

 ment and half as long as the meropodite. Third legs as in A. 

 trispinosus, but the propodite almost just as long as the meropodite, 

 not longer, dactylus simple, about ^3 of the propodite. 



Ova 0,6 mm. long. Lengtb 10 mm. 



21. Alpbeopsis Sibogae, n. sp. 



Station 49a. Lat. 8° 23'. 5 S., long. 119° 4'. 6 E. Sapeb-strait. 

 Deptb 70 M. 



Rostrum acute, short, hardly reacbing beyond the proximal 

 third of the visible part of basal antennular article ; frontal margin 

 broad, its outer angles sligbtly projecting foreward and termina- 

 ting in the acute extra-corneal teetb, that are directed inward, 

 reacbing to the middle of the rostrum. Eyes entirely covered 

 above by the carapace. Pterygostomian angle rounded. Telson as 

 in Alpheopsis consohrinus^ but the posterior margin prominent. 



Antennular peduucle slender, 2nd article twice as long as thick, 

 as long as the visible part of the Ist., and one and a half as 

 long as the 3rd; undivided part of outer flagellum composed of 

 4 short articles. Stylocerite acuminate, a little longer than basal 

 article. Carpocerite slender, 6 times as long as thick and as long 

 as antennular peduncle; scale narrow, just reacbing beyond median 

 antennular article. 



