116 T. GiSLÉN, 



proximal paii willi a w cll-lMtrdered, strong, median tootli \i.sible in 

 side view as a iiigli bidental(; wing, wliicii, logetiiei' with t lie disto- 

 median tuberele of 1 Br 1, Coi-ms a sii-ong synai'thrial prominence. 

 The distal boi'der of I Bi-ax obtuse-angled, with (i — 7 ])oinl(!d promi- 

 nences. 11 Hr-s: 2, similar to the I Br-s, but with smallei- and 

 weaker synarthrial tubercles. Arms probably XX (II branches broken), 

 05 mm., indistinctly flattened laterally. 'Die first Br-s smootii. but 

 with prominent, lamelli-shaped lobated prominences both proximally 

 and tiistally (cf. above). In addition the most proximal Br-s partly with 

 a median, dorsal prominence, which develops more distally to a dorsal 

 spine, partly with a pair of similar medio-lateral prominences, alter- 

 nately most developed on the left and on the right. These lateral tu- 

 bercles, situated on both sides of the median dorsal spine, disappear at 

 the 15*'' to 20"' Br-segments and from these only the n'ledian dorsal 

 spine remains. The distal segments rather sti'ongly pressed together 

 from the sides. Ex. of syzygies: 3 + 4, 22 + 23 or 3 + 4, 35+36 etc. 

 with an interval of — 11 oblique articulations. About 5 distal seg- 

 ments with rudimentary pinnules. 



Pj 12 — 13; S mm. (5 — 7 first pinnulars concave on the outside, 

 the concavity bordered by a more or less lobate wing-like prominence: 

 6* and the following segments a little longer than broad, smoother 

 with a smaller wing and somewhat spiny distal collars); P.^ 1 1; 5,.=) mm. 

 P3 6; 4,5 mm. P^ 7, a little longer. Distal p. 12; 5 mm. (P* and 2'' 

 segments short, the following ones L= 1' 2 — 2 br, the two last seg- 

 ments short again. The pinnulars smooth, in the proximal part trian- 

 gular, in the distal part rounded). 



Disk encrusted with coarse granules, like the other weak parts 

 dark-brown. The ossicles are a lighter brown. 



Sp. 2 (St. 50) C. XX 57—61; 20—25 mm. A dorsal spine al- 

 ready on the 12''' cirral. Arms + XX, 65 mm. 1 Brax rhombical. 

 Already about Br 10 the dorsal claw is the only remaining prominence. 

 Ex. of "' syzygies: 3 + 4, 31 + 32 or 3 + 4, 6 +^7, 32 + 33 etc.; distally 

 wnth an interval of S — 11 oblique articulations. Pj 13; 7.5 mm. Pg 10; 

 5 mm. P3 S; 4 mm. P^ 7; 3 mm. P5 8; 3,5 mm. Distal p-s II; 6 mm. 



-S/j. 3 (St. 56) C. XX\TI 37—56; 14—24 mm. Dorsal surface of 

 Cd 1,5 mm. Arms XX, 50 mm. Br-s with shorter processes than in 

 the preceding specimens. A single dorsal spine from Br 10. Arms 



