1 66 LITERATURE OF THE POR1FERA 



24. Schulze. Amerikanische Hexactinelliden, etc. (Jena, Gustav Fischer, 1899, 



text and atlas.) 



25. Sollas. Tetractinellida. (Challenger Reports, Zool., vol. xxv.) 



26. Topsent. Classification des Halichondrina. (Mem. Soc. Zool. France, viii., 



1894, pp. 5-22.) 



27. Etude monographique des spongiaires de France. I. Tetractinellida, 



II. Carnosa. (Arch. Zool. Exp. (3), ii. 1894, pp. 259-400, pis. xi.-xvi., 

 and (3), iii. 1895, pp. 493-590, pis. xxi.-xxiii.) 



28. Classification des Hadromerina. (Arch. Zool. Exp. (3), vi. 1898, pp. 



91-116.) 



29. Vosmaer. Spongien. (Bronn's Thierreich, ii. 1887.) 



30. and Pekelharing. Observations on Sponges. (Verli. d. k. Acad. v. 



Wet., Amsterdam, (2), vi. 3.) 



31. Wdtner. Spongillidenstudien i., ii., iii. (Arch. f. Naturgesch, 1893, pp. 



209-284, pis. viii., ix., and 1895, pp. 114-144.) 



32. Zittel. Palaeozoologie, Bd. I. (Munich and Leipzig, 1876-1880.) 



33. Zykoff. Entwickelung der Gemmula bei Ephydatia fiuviatilis. (Bull. Soc. 



Imp. Nat., Moscow, 1892, pp. 1-16, pis. i., ii.) 

 Addendum to Bibliography 



34. Evans. The Structure and Metamorphosis of the Larva of Sponyilla lacustris. 



(Quart. Journ. Micr. Sci., n.s. 42, 1899, pp. 363-476, pis. 35-41.) 



ABBREVIATIONS OF AUTHORS' NAMES. 



Bill., Billings. Boc., de Bocage. Bwk., Bowerbank. Crtr., Carter. D.,Dcndy. 

 Defr., Defrance. Dbd., Doderlein. d'Orb., d'Orliyny. Ducli. et Mich., Duch- 

 assaing et Michelotti. Duj., Dujardin. Dun., Dunikoicski. Dyb., Dybowski. 

 Eichw., Eichivald. Et., Etallon. Fabr., Fabricius. F. E. S., F. E. Schulze. Flem., 

 Fleming. From., Fromentel. Goldf., Goldfuss. H., Haeckel. Han., Hanitsch. 

 Hanc. , Hancock. lij., lijima. J. Cl., James-Clark. Johnst., Johnston, L., 

 Linnaeus. Lam., Lamarck. Lamx., Lamouroux. Ldf., Lendenfeld. Mant., 

 Mantell. Mich., Michelin. Mont., Montagu. Murch., Murchison. Ndo., 

 Nardo. Norm., Norman. 0. S., Oscar Schmidt. Pall., Pallas. Park., 

 Parkinson. Peng., Pengelly. Pol., Polejaeff. Pom., Pomcl. Qst., Quenstedt. 

 K., Ridley. R. and D., Ridley and Dendy. Rff., Rauff. Roem., Roemer. Rss., 

 Reuss. S. K., Savile-Kent. Schliit., Schluter. Soil., Sollas. Steinm., 

 Steinmann. Stew., Stewart. Stuck., Stuckenberg. Stutchb., Stutchbury. 

 Tops., Topsent. Tschern., Tschernyschew. Vejd., Vejdowsky. Vosm., Vosmaer. 

 Wale., Walcott. Welt., Weltner. W. Th., Wyville- Thomson. Z., Zittel. 



ADDENDUM. 



Since the above chapter was in print a remarkable type of calcareous 

 sponge has been discovered by Dr. Willey. It was found by him 

 growing on dead coral in Sandal Bay, Li fa, Loyalty Islands (Western 

 Pacific). A description of this organism under the name Astrosclera 

 IVilleyana will shortly be published in Dr. Willey's Zoological Results, 

 Part IV., by Mr. J. J. Lister, to whose kindness we are indebted for the 

 following description, compiled from advance proof-sheets of his work, as 

 well as for the two figures here given (Fig. 97, A and B). 



The four specimens obtained of this sponge were cylindrical in form, 



