BATHYMETRICAL DISTRIBUTION. 



In the preceding pages, one hundred and eighty-nine species of Alcyonaria are 

 described as found during the voyage of the Challenger ; of this number we have been 

 unable to identify one hundred and thirty-three with already described forms. 



In the following list the distribution in depth of one hundred and seventy-seven 

 species is recorded ; of which number one hundred and fifty-nine were found in depths of 

 from " shallow water " to one of 600 fathoms, and but eighteen in depths of from 600 

 fathoms to one of 2300 fathoms. 



As to the species from the great depths, it would seem premature to draw any con- 

 clusions from them as the record of the deep-sea Alcyonaria seems still to be very 

 incomplete. 



Reefs ; shallow water, under 100 fathoms, but no precise depth mentioned. 



Acamptogorgia alternans, reefs. 

 Mclitodes lyhiliiypinensis, reefs. 



,, sinuata, reefs. 



,, esperi, reefs. 

 Spongodes digit ata, reefs. 



,, spicata, reefs. 



,, spinosa, reefs. 



Sarcophytum trochcliophorum, reefs. 



Sarco2)hytum glauciim, reefs. 

 Heliopora ccerulea, reefs. 

 Pseudoplexaura crassa, shallow water. 

 Plexaura valenciennesi, shallow water. 

 Gorgonia Jlabellum, shallow water. 

 Suheria genihi, shallow water. 

 Paranephthya capitidifera, beach. 

 Xenia elongata, shallow water. 



Tidjipora musica, shallow water. 



Shallow water to 100 fathoms. 



Plexauroides prielonga, 8 fiithoms. 

 Lcptogorgia torresia, 8 fathoms. 

 Juncella gemmacea, 8 fathoms. 

 Ellisella maculata, 8 fathoms. 

 Echinogorgia pseudosassapo, 8 fathoms. 

 Telesto arhorea, 9 fathoms. 



Spongodes macros'pina, 10 fathoms. 

 „ Jlorida, 10 fathoms. 

 ,, anguina, 10 fathoms. 

 „ hicolor, 10 fathoms. 



,, heterocyathus, 10 fathoms. 

 coronata, 10 fathoms. 



