84 



THE SPONGES OP THE WEST-CENTRAL PACIFIC 



406, recorded this or a similar species by the same name from the Philip- 

 pines. This differs from longleyi and pandora by a rather peculiar dark 

 blue color and particularly by the extremely large spicules, which are 16 p 

 by 225 fi. In other ways there are enough resemblances that it is here sug- 

 gested that similis be transferred into the genus Neopetrosia. 



FAMILY CALLYSPONGIIDAE de Laubenfels 



GENUS CALLYSPONGIA Duchassaing & Michelotti 



Callyspongia fistularis (Topsent) Burton 



Text Figure No. 50 



This species is here represented by the following : 



U.S.N.M. No. 22964, My No. M. 338, collected June 29, 1949, by diver at 

 Majuro Atoll in a miniature lagoon near the west end of the lagoon. 

 The depth was 2 meters, and the substrate was dead coral. 



U.S.N.M. No. 22993, My No. M. 371, collected July 7, 1949, by diver at 

 Ebon Atoll near the southeast side of the lagoon. The depth was 2 

 meters, and the substrate was dead coral. 



U.S.N.M. No. 22995, My No. M. 373, collected July 7, 1949, by diver in 

 the open ocean at the west side of Ebon Atoll, near Rube point. The 

 depth was 3 meters, and the substrate was dead coral. 



U.S.N.M. No. 22810, My No. N. 016, collected by W. R. Taylor by dredg- 

 ing in the lagoon of Eniwetok Atoll, 5 kilometers west of Jieroru Islet. 

 The depth was 35 meters. 



•■00'' :: '>-i ; :'/^ 



\ssu**^* 



Text Figure No. 50. Callyspongia fistularis. A: Portion of the ectosomal reticulation, 

 X 182. B: Portion of the endosomal reticulation, X 182. C: One of the spicules (oxea), 



X 781. 



