BATTERSBYIA. 9$ 



Genus 20. BATTEESBYIA, Bow., in, 347. 

 BATTERSBYIA BUCKLANDI, Bow. 



1861 Halina Bucklandi, Bow. List Brit. Marine Invert. 

 Fauna (Brit. Assoc.),p. 70. 



1866 Hymeniacidon Bucklandi, Bow. II, 226 ; ill, pi. xxxviii, 



figs. 912. 



1867 Dercitus Bucklandi, Gray. Proc. Zool. Soc., p. 542. 



1870 Pachastrella BucMandi, Schmidt. Spong. Atlant. Geb., 



p. 76. 



1871 Dercitus niger, Carter. Ann. Nat. Hist., ser. 4, vol. vii,. 



p. 13, pi. iv, figs. 1 6. 

 1874 Battersbyia BucMandi, Bow. in, 346, pi. xcii, fig. 8. 



Habitat. " I have received specimens from the Rev. 

 A. M. Norman found between tide-marks, Westport 

 Bay. They were small and comparatively thin, neither 

 so large nor so massive as the type, but anatomically 

 quite in accordance with it. 5 ' Budleigh-Salterton, 

 Devon, H. J. Carter, 1. c. 



I much regret that the name of the genus instituted 

 by Dr. Bowerbank to receive this species and at the 

 same time to commemorate my friend Dr. Battersby's 

 zeal in natural history cannot be retained. Undoubt- 

 edly Schmidt's genus Pachastrella, established in 1868,* 

 is the same ; but Schmidt's name will also have to 

 give place to that of Dr. Gray, which is a year earlier, 

 and the sponge must be known as Dercitus Bucklandi. 



The genus is altogether in a wrong place as here 

 arranged. It has truer affinity with Tethya, JEcion- 

 emia, &c. 



The following are the other known species, which 



* Schmidt, ' Die Spongien der Kiiste von Algier,' 1868, p. 15. 



