i with '1 distal <■• adials with numerous 



promim nded tubercles on the dorsal surface; cirri with 



P and I' with about i gments 



Malacca to Singapore) singularis 



[jments bear dorsal tubercles or short spines, which 

 idually 

 ; (usuallj over 35) cirrus segments 



ind stoutest pinnules at the base of the arm have 

 from 20 to :: 5 segments; 1', is from half again to twice as 

 long as 1', ; 1 6 — 2 \ arms 



I' the largest and longest pinnule, with 20 — 22 segments; 

 1' almost as long as P 8 ; cirri with 32 — 40 segments of 

 which the outer bear small dorsal tubercles or spines 



the longest cirrus segments are slightly longerthan broad; 

 the short distal segments are but little longer than broad ; 

 rather small, though sharp, dorsal spines are developed 

 trom the 2o' h segment onward (sou th west of the 



mouths of the Irrawaddy River) pulchra 



none of the cirrus segments are longer than broad; the 

 outer bear small dorsal tubercles, and the terminal some- 



times prominent spines (Amboina) amboinae 



f 1' the longest piunule, with 21 — 24 segments 



g 1 P., half again as long as P ï or 1'. which are approximately 

 equal in length, with 21 segments; 39 — 43 cirrus segments 



Zanzibar) joubini 



P 9 half again as lom;- as P v but only slightly longer than 

 1'. which is much larger than P l ; P„ has 24 segments; 

 j6 -39 cirrus segments; a more delicate species than the 



preceding (Zanzibar) graviert 



the longest and stoutest pinnules on the base of the arm have 

 trom 26 to 30 segments 



f' nol over t6 arms; 32 — 36 cirrus segments; lower pinnules 

 strongly carinate; enlarged proximal pinnules with the second- 

 rïfth segments strongly carinate 



P twice as long as P, ; 1'. much smaller, slightly Ion 



than P, (Red Sea; ? Ceylon 1 ) ater 



I' slightly longer than l',- P slightly longer than P s 

 Madagascar) madagascarensis 



from Ceylon dr ik (Abfaandl. der Scnck. aaturl vol. ;ï. 1913, Hefl 1. 



ibis species; .it nny rnte it is dosely related t') it. His specimen 



