C. F. JENKIK. 



and adopted with slight modifications by Minchin (1) ; it has been considerably 

 extended to include the new species. The last column in the table gives the 

 number of species in each genus found in the ' Discovery ' collection. 



Families. 



1. ClathriuidEe 



2. Leucosoleniidae 



1. Sycettidae 



2. Grantiidae 



?>. HeteropidEe 



4. Amphoriscidas 



5. Ghiphoridm 



6 Staurorrhaphidm 



Genera. 



GEADE A. -HOMOCOELA. 



[Clathrina 

 < Aseandra. 

 (Dendya. 



(Ascyssa. 

 (Leucosolenia 



GRADE B.— HETEROCOELA. 



fSycetta. 

 < Sycon.* 

 {Tmthrenodes 



'Grantia.f 

 Ute. 



Sub-genus Synute. 

 UteUa. 

 Anam axilla. 

 Sycissa. 

 Leucandra . 

 Lelapia. 

 Leucyssa. 

 ^Dermatreton 



Grantessa. 

 Heteropia. 

 Vosmseropsis. 



iHeteropegma. 

 Amphoriscus. 

 Syculmis. 

 Leucilla. 



iStrepioconus 

 \Hypodictyon 



iAchramorpha 

 Sub-genus Grantiopsis. 

 Megapogon . 



Number of Species 



in ' Discovery ' 



Collection. 



5 species. 



5 and 1 variety. 

 2 



18 species and 

 1 variety. 



In the above table the names of the new families and genera are printed in italics. 



* The genus Sycantha is omitted for reasons stated on p. 4. 

 t Grantiopsis is transferred to the family Siaurorrhaphidce. 



