I iS 



d' [8 2;, cirrus segments; P, with 14—15 segments, nearly ;is long as 

 I' and of the same character; the segments ol P beyond the fifth are 

 only slightly longer than broad; arms 50 mm. in length (Saleyer). laevipinna 

 d 9 16 — -18 cirrus segments; 1', slender, becoming flagellate distally, less 

 stoul and stiff than 1'., with 16 segments; the segments of 1'. from 

 the fourth onward are about half again as long as broad; arms 45 mm. 



long western Australia) ttuderi 



1' has 10 — 14 segments which bear fine spines on the (listal angles 

 d 1 21 — 23 cirrus segments, most of which are about twice as broad as 

 Ion-, the antepen ultima te being nearly or quite as long as broad; P, 

 has 12 — 1 ; segments; arms about 35 mm. long (C e y 1 o n and 



vicinity) brevicirra 



d s not more than 20 cirrus segments 



e 1 15 — 20 cirrus segments; P, has about 13 segments; arms 35 mm. 

 to 50 mm long 



f 1 all of the cirrus segments broader than long; outer segments 

 of P s less than twice as long as broad; 15 — 18 cirrus segments; 



arms 40 mm. long (Philippine Islands) informis 



{- outer cirrus segments about as long as broad; segments in the 

 distal half of P., twice as long as broad; 14 — 20 cirrus segments; 

 arms 35 mm. to 50 mm. long (sou the as ter n Africa and 



Mauritius) modica l ) 



10 — 15 cirrus segments, those beyond the fifth-seventh about as 

 long as broad; P 2 has 8 — 1 1 segments; arms 35 mm. to 40 mm. long 

 f 1 14 — 15 cirrus segments; P 3 has 11 segments (Paternoster 



Islands) paria 



f- io — 12 cirrus segments; P„ has 8 — 9 segments (Celebes). . minima 



1. Decametra mylitia A. H. Clark. 



A. H. CLARK. Ann. and Mag. Nat. Hist., series ï>, vol. 10, 1912, p. 36. 



Stat. 99. 6V.5N., [20°26 E. Anchorage of North-Ubian Island. 16—23 Metres. 4 Ex. 



The centrodorsal is discoidal, the Hat dorsal pole 1.5 mm. in diameter; the cirrus sockets 

 are arranged in two closely crowded alternating rows. 



The cirri are XIX, 21 — 23, 10 mm. to 11 mm. long; the cirrus segments are subequal 

 in length. the tirst very short, the second slightly longer, the third and following about twice 

 as broad as long or slightly broader, the lasl three before the penultimate increasing slightly 

 in length so that the antepenultimate is about one third again as broad as long; the earlier 

 segments have the dorsal surfaqe swollen and truncated distally so that the dorsal profile is 



\ il- 



