76 



In tlii? largest specimen the rostrum is 20 millim. long, the carapace, 

 measured in the middle line, 2t) millim., and the abdomen 66 millim. 



Found here in the Arabian Sea in 457-589, 595-556, and 865 fathoms; in 

 the Bay of Bengal in 561 and 753 fathoms, and in the Andaman Sea in 405 and 

 498 fathoms. 



p 1 -vr 



G7.-)G-(i7o7 !)^2G 9229 1443 2419 38lO-j!SI1 381<i 



"IT" ~ ~o" lo~ : ib~ : ~ : To/ 



Acanthephyra e.rimia var. brachytelsoms (Speuce Bate). 



Acantkepliyra krariytelmmi*, Spcnce Bate, Challenger Crust. JIncrarn, p. 753, pi. cxxvi. fig. 7 : Wood-Mason, 

 Annals and Mag. Nat Hist. (G) VII. 1891, p. 195 and IG) IX. 1892, pp. 362, 3B3, fi?. 4. 

 I.-.itSTBATIONS OF THE ZOOLOGY OK TJ1K INVESTIGATOR, Cl'.CSTACEA, PLATE III. Flli. 2. 



A. fauchytehonis ought, perhaps, not to be separated from A. cxitnin, from 

 \vhich it differs only in the following unreliable characters : 



The ventral border of the rostrum has only 3 teeth two being close 

 together at, or just abaft, the middle, and the third being about midway between 

 these and the tip. 



The basal crest of the rostrum is armed (dorsally) Avith from 5 to 7 (usually 

 G) teeth, in advance of which the dorsal border of the rostrum is usually quite 

 smooth. 



Colour in life, crimson. 



In the largest perfect specimen the rostrum is 30 millim. long, the carapace 

 34 millim., and the abdomen 78 millim. 



Found here in the Arabian Sea in 738, 740, 865, 890, 902, 912-931, 947 

 and 1000 fathoms ; in the Bay of Bengal in 753 and 800-637 fathoms, and in 



the Andaman Sea in 490, 500 and 683 fathoms. 







Wood-Mason considered, with some justification, that Speuce Bate's A. angusta is, like 

 A. brachytelsonis, identical with A. eximia. 



T> -, ^ 8518 43 6073-G073 GQ80-6087 6750 8103 9227-022S 305-300 334 



Kegci. IMOS. -jr- : -: - rj : : 9 : - : 10 : 10 : 



S75-37G . 747 

 10 ' 10' 



40. Acanthephyra armata, A. M. Bdw. 



Accnthephyra armata, A. Milno Edwards, Ann. Sci. Nat., Zool., (6) XI. 1881, Arr. 4, p. 12, find Rec. Fitr. 

 Cruat. pi. 28, fig. 1 : Sponco Bate, Challenger Crust. Macrum, p. 744, pi. cxxv. iig. 2. 



Xc mthephyra armata var., Wood-Mason, Ann. Mag. Nat. Hist. (6) IX, 1892, pp. 359, 360, fig. 2. 

 ILLUSTRATIONS OK THE ZOOLOGY OF THE INVESTIOATOR, CRUSTACEA, PLATE in. Fie. 1. 



Differs from A. c;eimia in the following characters : 



The rostrum is produced as a low carina to about the middle of the gastric 

 region, behind which it is continued as an indistinct ridge. (As in A. eximia 

 it varies in length, being ^ometimes a good deal longer and sometimes a good 



