242 BULLETIN 93, UNITED STATES NATIONAL MUSEUM. 



A. fischeri Locard Miocene, Corsica. 



A. muricata Seguenza Pliocene, Sicily. 



A. sarda De Alessandri, 1895. Oligocene, Sardinia. 



A. fornue De Alessandri, 1897. Miocene, Italy. 



A. schafferi De Alessandri, 1910. Miocene, Austria. 



A. glans Lamarck, 1818. Australia. 



A. Icevigata Gray, 1825. Red Sea; Philippines. 



A. fenestrata Darwin, 1854. Philippines. 



A. pui'i>urata Darwin, 1854. East Indies. 



A. sporlllus Darwin, 1854. Suln Islands. 



A. scutlcosta Weltner, 1887. Carthagena, Spain. 



A. striata Gruvel, 1901. Atlantic, 400 meters. 



A. funiculorum Annandale, 1906. Gulf of Manaar, Ceylon. 



*A. ja.powca Pilsbry, 1911. Japan. 



*A. dofleini Kriiger, 1911. (Japan ?) ; Philippines. 



*A. pectmlpes Pilsbry, 1912. Philippines (+ A. nitida Hoek, 

 1913. Java Sea). 



*A. idiopoma Pilsbry, 1912. Philippines. 



A. conica Hoek, 1913. Macassar. 



Besides the species starred in the above list, I have been able to 

 study specimens of A. glans,, A. sulcata and A. Icevigata, in the col- 

 lection of the Academy of Natural Sciences. 



The distribution of the genus Avill probably be much extended 

 when the sponges of some extensive coasts are examined for barn- 

 acles such as east and west Africa and west America. Most of the 

 species now known inhabit the shores and archipelagos between 

 Japan and South Australia, with the most intense speciation about 

 the middle of this region. 



ACASTA SPONGITES (Poli). 



1795. I.epas spongitcs POLI, Testacea utriusque Siciliee, p. 25, pi. 6, figs. 3-6. 

 1854. Acasta spongitcs Poli, DARWIN, Monograph, p. 308, pi. 9, figs. la-Id. 

 (See for synonymy.) 



Distribution, British Islands to the Mediterranean ; Cape of Good 

 Hope (Darwin). 



The tergum of a specimen from Exmouth is figured (fig. 77). 



