The Crikoiks fkom I)k. S. IJock's Kxpkihtion to .Iatax I!»I4. Oil 



Sp. G (S(. :{4| (". XXII IT) :!l: U-L'Oniin. Anns XX. iHI mm. 

 Br-segmeiits about I'M), from about lir lOU a .slight median cariuatiou. 

 Syzygics with an interval of 4 — 10 oblique articulations. — P, 18: .").;, 

 mm. 1',, 17: '.)..•, mm. !', 1(5—17; 8,5—9 mm.. 1', l(i: O.r, nm).. P,, 1:5: 

 () mm. Distal p. 17: 1* — 10 mm. — Disk regenerating. ;{.:. to 7 mm. in 

 diameter. 



Sp. 7 (St. :U| The dorsal, free surface of Cd 2 nun. ('. XiX 

 25—:^."): U~|8 mm. Arms + XVI. 4.") mm. — P, IT): 4.:. nun. P., 17: 

 7 nnii. Distal \>. 14: S.:. nmi 1*, small )>.:■ — 4 nun. P,, aiul P, 17. + J> 

 lum. Disk regenerating. 



The interradial ])ron)inenees of the R — s most distinct on tiie 

 youngest specimens, then the I Br-s I increase more rapidly and 

 come in lateral apposition. In the largest specimens 1 Bra.v is almost 

 rhombic with variable carination. The wing-like prominences on the 

 I'' and 2'' segments of the promimal pinnules are in Sp. 6 distinct out 

 to about P,,, l)ut still noticeable on the distal pinnules. 



Thalassometridae A. 11. ('l.\rk. 

 Pterometra A. il. Clark. 

 Pt. trichopoda A. II. <'i.\k'k. 



Fig. 101. 1(12. 

 Syn.: Pfih'iiirlrfi trichapodu liMlS A. II. Gl.\i;n Wash. Sinilhs. Misc. Cuii. 

 Vol. 52,' p. 224. 



Ftcrovietni liirlioiimla HUl A. 11. Clauk ^^■asll. Proc V . S. Nat. Mus. Vol 

 39, p. 545; 1912 ' rin. Iiwl. Oc, j. I'.Ml; 1915 Monograph, p. Si ; 1918 Siboga Exp. 

 Vol. 42 P.. p. 14:!. 



From St. 15 (1 sp.). 48 ( 1 1. r)9 (;]) = 5 s]tecimens. 



Sp. 1 (St. 45) t'd h = 2 nmi.. br = 2 nun. with 5 i-adially ai'ranged 

 warts on the doisal cone. 



r. XXI\' f)7 (I))— 7.') (^■|. ;i8— 44 mm. arranged in 10 rows, 2 

 rows in e\ery I'adius, and 2 or '.\ cii'ri in every row. 4"' segment 

 cubical, 5"' to about 20"' L = I' 2 hi', then shorter segments again. Distal 



^ 



