00 T. GisLi::\, 



Tropiometridse A. H. Clark. 

 Tropiometra A. 11. (lakk-. 



Tr. afra var. macrodiscus (IIaka). 



Syn.: AntcdoH )ii(icro(Uscus 1895 Haka Zool. Mag. Tokyo Vol. 7, j). 115. 



Tropiometra nmcrodiscus J907 A. H. Claek Smiths. Misc. Coll. \'ol. 50, p. 

 349; 1908 H. L. Clakk Bull. Mu.s. Comp. Zool. Vol. 51 (N:o 11), p. 279; 1912 A. 

 H. Clakk Smiths. Misc. Coll. Vol. 60, N:o 10, p. 28; 1915 Jouin. Acad. Sci. Vol. 5, 

 p. 214; ^iloiiograph pp. 52, 54, 275; 1918 Siboga Exp. Vol. 42 B, p. 131. 



Tropiometra rifra (part) 1908 A. H. Clark Proc. U. S. Nat. Mas. \\>\. 34, 

 p. 315: 1912 Ci-in iiul. Oc. p. 17fi. 



From Sf. 27 = 9 s]ieeiinens. 



'S/7. / (St. 27) C(l ciiscciidal. tlat dorsal sui-face with .slight radi- 

 ating swellings, 10 mm. 



C. XLIII 30 — 30, r 40 mm. in two whorls. The segments are 

 uniform, cubical or somewhat (L=''2 — - .i br) shorter. No dorsal 

 spine. Tei'minal claw a little longer than the penultimate segment. 

 Cirri coarse. Ventral cirri shoi'test and with a less number of seg- 

 ments. 



R — s somewhat projecting in the corners. I Br 1 h = VG br, 

 laterally grown together as are also the bases of the axillaries. The 

 articulations between the proximal ossicles indistinct. I Br 2 h = ' s hi-, 

 pentagonal or almost triangular with a small median tubercle well 

 marked off from I Br 1. The proximal segments flattened, granular, 

 as is often the ease in Oligometrides. AruLS X. 190 — 210 mm. Br 1 

 united inside in pairs, tiieir br 5,.^ mm. Br 1 and 2 on the outer side 

 twice as long. All the distal segments short, discoidal. Ex. of syzy- 

 gies: 3 + 4, S + 0, 13+14, 30 + 31, 39 + 40, 50 + 51 or 3 + 4, 9 + \0, 

 15+16, 28 + 29, 41+42, 51+52... Distally with an interval of about 

 S oblique ai'ticulations. The L of the segments =-■ '4 bi-. 14 segments 

 per cm. (12, if the syzygial pairs are counted as units). 



\\ 25 — 27: 20 mm.. P., 34; 26 mm. (L. of the segments = 1' 2 br|. 

 1*2 — B,|, slowly deci-easing, larger and coarser than the following pin- 

 nules. Ambulacral fui'row does not appear until Pg{ — Pu) (with the 

 exception of on an arm shorter than the other ones). Distal p. 4 35: 15^ 



