188 Antkhon MrtKviruNKATA. 



dorsal surface, aud a single or partially double row of 

 marginal cirrlii. There are ahout 80 of these consis- 

 ting of 25 — 30 tolerably equal joints, the 6th and 7th 

 about scjuare and the next two or three just longer 

 than broad. The following joints diminish gradually in 

 size towards the end , but without developing dorsal 

 spines except for a small and blunt one on the penul- 

 timate. 



First radials not visible; second and third very convex, 

 the former being shorter in the middle than at the sides 

 where they are closely united to their fellows ; axillaries 

 short, pentagonal, with wide distal angles, less than twice 

 the length of the second. 



39 arms. Rays in close contact but dividing three times , 

 each division of two joints , the axillary not a syzygy. The 

 joints of the primai-y arms on the outer sides of the rays are 

 somewhat flattened laterally where they are in contact with 

 their fellows. First brachials large and rhomboidal ; the 

 second shorter , aud much more wedgeshaped : the third 

 (syzygy) nearly square , rather longer on inner than on 

 outer side. The next five joints nearly oblong with slight 

 forward projections alternately from the outer and inner 

 sides of their distal edges. The following joints are 

 smooth , short and wedgeshaped , retaining the forward 

 projection about as far as the 60th , but much more mark- 

 edly in some arms than in others. Later joints gradually 

 become blunter and nearly square at the extreme arm- 

 ends. First syzygium on 3rd brachial ; the next on 4 , 5 , 

 9, or as far as 17; then an interval of 7 — 18 joints, 

 usually about 10, between successive syzygia. 



The largest and stoutest pinnule on the outer side of 

 the arm is the second, borne by the 4th brachial. It is 

 about 1 mm. long and consists of about 25 joints which 

 are stout at the base but taper away rapidly towards the 

 end. 5th brachial bears a similar but somewhat smaller 

 ])innule. Relative sizes of pinnules on 2nd and 6th br. 

 nitlicr variable, but both are smaller than that on 4th 



JVott-w li'oiTi Ihe Lcytleii ]Vlu»euiii, Vol. III. 



