224 SYSTEMATIC ARRANGEMENT 



with a single central series of large spines, denticulated on the edge. 

 Spawn in many undulating coils. 



1. F. coronata, t. 191. f. 4, t. 206. f. 1. 



2. F. annulicornis, t. 205. f. 5. 



3. F. minima, t. 205. f. 4. 



4. F. crassicornis, t. 195. f. 5. 



5. F. subrosacea, t. 195. f. 4. 



4. CORYPHELLA. 



Body slender. Dorsal tentacles simple. Branchiae linear or fusi- 

 form, clustered. Foot narrow, with the anterior angle much pro- 

 duced. Lingual membrane with the central series of plates with a 

 large central spine and marginal denticles, and two separate lateral 

 spines, denticulated on the inner margin. Spawn in many undulating 

 coils. 



1. C. Landsburgii, t. 273. f. 3. 



2. C. rufobranchialis, t. 273. f. 2=E. Embletoni, Johnston. 



3. C. pellucida, t. 200. f. 1. 



5. Favorinus. 



Body slender. Dorsal tentacles with a bulbous swelling ; oral 

 tentacles long. Branchiae linear, flattened, in distant transverse 

 rows ; the anterior ones double. Foot narrow, with the anterior 

 angles much produced. Lingual membrane with a single series of 

 plates with a single smooth spine. Spawn of many plain narrow 

 coils. 

 1. F. albus, t. 192. f. 2. 



6. Phidiana. 



Body stout. Dorsal tentacles clavate, perfoliate. Labial feelers 

 very large, subulate. Gill in close cross rows. Sides of the foot 

 rounded. Lingual membrane ? 



* Foot rounded in front. 



1. P. Patagonica, t. 191. f. 3. 



2. P. Inca, t. 191. f. 1, 2, t. 194. f. 8. 



3. P. longicauda, t. 194. f. 11. 



4. P. Northumbrica, t. 208. f. 1. 



** Foot subulate in front. 



5. P.? cserulescens, t. 194. f. 4. 



7. Eolidia. 

 Body depressed, rather broad. Tentacles linear, simple. Bran- 

 chiae rather flattened, set in numerous close cross rows. Foot broad ; 

 anterior angles acute. Tongue with a single series of broad uniformly 

 pectinated teeth. 



