18 



T. ClSLEN. 



Comatella stelligera (I'. 11. • \i;i'.). 



Fig. 7-9. 

 Syii.: st'(" Sil)og:i Exp. 42 B, A. II. t'l. Uiu, Liiisialkcd Ciiiioids, p. .i. 



I-'roin St. 4:5 (1 sp.( 5() 1 1 I. 59 (2) = 4 s])eei)iieiis. 



Sp. 1 |St. 59) (M diseoidal ?>.- iimi. Free dorsal sui-faee 2 niiii. 



('. XXMll 20—24. 15—20 min. in two whorls. P' and 2'' segments 

 shorter than long, 8'' one somewhat longer, like the nearest one fol- 

 fowing in the centre a little sqneezed together, 4"' — 0"'- segments L = 

 H; I ' 2 hr. 7''' segment a transition segment, the S'"' and the following 

 ones highly polished. From the 7"' segment a snuill dorsal spine, which 

 at first consists of a minute, transvei-se. spiny crista, about the 11"' seg- 

 ment consti-icted to a simple spine protruding from' the distal part of 

 the segment. Distal cirrals L = ^/2—-/?, X br. The height of the spine 

 = '/•* — '/^ of the breadth of (he segment. Opposing spine more jiointed 

 and a little smaller than the preceding ones. Terminal daw curved 

 L = 1 2/3 X the penultimate segment. 



R-s visible as narrow bands. 1 Br i h = ^/i X bi-. baso-latei'aily 

 united, like all the following ossicles of the proximal part of the arm 

 with the ends somewhat thickened, bent outwards, and with small 

 spines. A distinct synarthrial tubercle. 1 Brax triangular or low penta- 

 gonal, h = '/3 br, laterally somewhat squeezed together. 11 Br-s are 2. 

 appearing in S cases. II Br 1 as Br 1 on the inside united. Br I and 

 2 narrow, a little broader on the outside. After Br 7 oblique segments 

 with the distal margins widened. o\-erlapping and spiny. .\n example 

 of the arm-ramifioation (a little differing in one brancli| is gixcn 

 below. 



I i— 2 



II 



i5r 1—2 3^4, 

 Br 1-2 3 + 4 

 Br 1-2 3 + 4, 



+ <•), 2r), +27, ..3(),-^-37, ., 



31 ^32.. 



. . 23 H 24 . . 32 + 33 . . 



I(> 



F.r 1—2 3+4 . 17+lN . . 25^-20 . . 31+32 . . 40+41 . 



