Dr. J. E. Gray on the Family Pennatulidse. 21 



apart, placed alternately on each side of the axis, with distinct 

 digitate tubercles. 



Hab. . (Broken ; perhaps imperfect.) 



**Pinnules all adpressed, nearly transverse to the rachis. 



3. V.juncea, Esper, t. 14. Molucca and Borneo. 



4. V. Reinwardtii, Herklots, Not. 13. t. 7. f. 8. Indian Seas. 



3. LYGUS, Herklots. Axis filiform, cylindrical, flexible, con- 

 tracting spirally. Pinnules formed of diverging cells. 



1. L. mirabilisj Miiller, Zool. Dan. t. 11. North Sea; Scot- 

 land. 



4. SCYTALIUM, Herklots. Axis quadrangular, thin. Rachis 

 quadrangular. Pinnules small, triangular, placed obliquely on 

 each side of the front of the rachis. 



1. S. Sarsii, Herklots, Not. 14. t. 7. f. 6. North Sea. 



Dr. Herklots refers to the Funiculina cylindrica of Lamarck 

 with doubt. It has only been described from some stony axis. 

 I think there is little doubt of this being the axis of the coral 

 which I described as Primnoella Australasia, the axis of which 

 agrees well with Lamarck's description. He also inquires what 

 is the Pennatula scirpea of Pallas (Zooph. 372. no. 218) ? which 

 is not found in collections. 



Tribe II. PENNATULE^E, or Penniformes, are Sea-pens with 

 well- developed pinnules, shaped like a feather. 



Dr. Herklots divides the Pens with the pinna3 supported by 

 radiated spines into two genera ; but I am not able to distin- 

 guish the genera Pteromorpha and Pteroeides by our specimens, 

 though I believe that I have a specimen of the species which he 

 gives as the type of his germs. I believe the character given to 

 Pteromorpha (that is, the base of the pinnule being granular) 

 depends on the state of the specimens, the granular coat of the 

 pinnules being very deciduous in specimens which have been 

 preserved in weak spirits. I may be wrong ; if I am, then a 

 specimen of Pteromorpha has not occurred to me. 



I think the genera and species may be best arranged thus : 



5. PENNATULA, Linn. Pinnules elongate, angular, thin, 

 membranaceous, strengthened by imbedded spicula. Cells in a 

 single series on the edge. Rachis rough behind. 



* Elongate, ovate, lanceolate ; stem slender, \ the entire length ; 

 cells separate. 



1. P. phosphorea. Pinnules linear, with isolated cells. Esper, 

 t. 6. Europe ; coast of England. 



