44 BEITISH SPONGIAD^, 



fifteen pounds. As lie distributed his duplicates 

 among his friends, he used to laugh over the story, 

 which he told as a warning never to give an unlimited 

 order. Of late years the same sort of lesson has been 

 taught with respect to two other Sponges, Euplectella 

 aspergillum, and Myalonema mirabile. 



2. Tbthya Collingsii, Bow., ii, 87 ; i, PI. II, fig. 48 ; 

 ni, PI. XV, figs. 1—9. 



1867 Collingsia Scurniensis, Gray. Proc. Zool. Soc, p . 541. 

 1870 Stelletta Collingsii, Schmidt. Spong. Atlant. Geb., 

 p. 76. 



Habitat. — On the under side of large stones at ex- 

 treme low water, spring tides, at entrance of "Vyest- 

 port Bay, Co. Mayo (N). 



3. Tbthxa Schmidtii, Bow., ii, 89 ; in, PI. XV, figs. 

 10—16. 



1867 Collingsia Schmidtii, Gray. Proc. Zool. Soc, p. 541. 

 1870 Stelletta Schmidtii, Schmidt. Spong. Atlant. Geb. 

 p. 67. 



4. Tbthta Lynourium {Linn.), ii, 92 ; i, PI. XXV, fig. 

 342 ; III, PI. XV, figs. 17—22. 



1862 Tethya morwm and Lynmnum, Schmidt. Spong. Adii- 



atic Meeres, p. 44. 

 1867 Donatia awcmiiwn, Gray. Proc. Zool. Soc, p. 541. 

 1869 Tethya {Donatia, Gray) Lyncmium, Carter. Ann. Nat. 



Hist., ser. 4, vol. iv, p. 7, pi. ii, figs. 1—6. 



