OOPVOD*. 



10. X. ATLANTICCa 

 X. ttlantietu, Wolfenden, Jour. Mar. Biol. Amoc., April, 1904. 



nun. ; ant. ii.. r antennas much shorter than thorax and very thick Iwsnlly, 

 abdominal segments prickly and hirsute, feet very spiuulose ; fifth of three segment*, 

 distal the largest, with four large articulating spines, two apical, two lateral ; all 

 segments very spiuuloae ; furcal rami as broad as long, and lie of posterior antennao 

 much longer than Hi. (West of Ireland.) 



11. X. oBTUsrs. 



X. obtuna, Farntn, Ann. Rep. Fish., Ireland, I'.uii-oS, pt. ii., App. II. (1005), p. 40. 



Size 2*4 nun. Furcal rami little longer than broad, anterior antenna; reach genital 

 segment, feet very spinulose. Fifth feet, three segmented, spinulose, and with two 

 terminal and two lateral spines on last segment ; second joint longest, and spiuulose on 

 both margins. (Atlantic. Ireland.) 



12. X. PINOUIS. 



JT. jmyvu, Farran, Ann. Rep. Fuh., Ireland, 1902-03, pi. ii., App. II. (190.1), p. 40. 



Bin 4*5 mm. Head imperfectly separated from thorax ; lateral processes of 

 last segment blunt ; furcal segments slightly longer than broad ; anterior antenna) 

 short, not as long as thorax ; rami of posterior antenna) short and broad ; feet spinuloHe. 

 Fifth feet of three segments, and two lateral and two apical end spines ; surface of 

 third and margins of first (inner) and second (outer) spinulose. (Atlantic. Ireland.) 



13. X. GREEN I. X. MUTICUS. 



A'.ffrtmi, Farran, Ann. Rpp. Fish., Ireland, 1902-03, pt. ii., App. II. (190:.), p. 40. .V. mutietu, Hare, 

 Bull. Mas. Monaco. 



Size 5'30-G mm. ; last two segments of thorax united, last segment with obtusely 

 triangular margins ; furcal segments short, broader than long ; anterior antenna? little 

 longer than body. Fifth feet small, two-jointed (Sars), or three-jointed (Farran), without 

 spines on inner margin ; last joint with three small apical spines. (Atlantic. Ireland.) 



14. X. TYPICUS. 

 Amallophora typita, Scott, Tr. Linn. 8oc. (2), VI. (1894), p. 54. 



Only the 4 known ; 27 mm. long ; anterior antenna), twenty segments ; right 

 fifth foot short and three segments, left like that of .V. agUis. 



TOI- IT. 



