REPORT ON THE CALCAREOUS SPONGES COLLECTED 

 DURING 1906 BY THE UNITED STATES FISHERIES 

 STEAMER ALBATROSS IN THE NORTHWESTERN 

 PACIFIC. 



By Sanji HdzAWA, 

 Of the Science College, Tokyo Imperial University. 



' INTRODUCTION. 



A number of calcareous sponges were set aside by Prof. I. Ijima 

 from among the Hexactinellid material collected by the United 

 States Fisheries steamer Albatross during her cruise in the north- 

 west Pacific in 1906, and now being worked over by him for report. 

 The Calcarea specimens were kindly placed in my hand for ex- 

 amination. Small as the collection is, it proved to be a highly in- 

 teresting one, in that it was found to comprise in all 13 species, of 

 which 11 seem to be new to science. 



The following is the list of the species : 



Family HOMOCOELIDAE Dendy. 



1. Leucosolenia albatrossi, new species. 



2. Leucosolenia canariensis (Michlucho-Maclay). 



Family SYCETTIDAE Dendy. 



3. Sycon simtisliirensis, new species. 



Family HETEROPIIDAE Dendy. 



4. Heteropia medioarticulata, new species. 



Family GRANTHDAE Dendy (emend). 



5. Grantia nipponica, new species. 



6. Grantia heringiana, new species. 



7. Achrnmorpha diomediae, new species. 



8. Leucandra tuba, new species. 



9. Leucandra pocitMformis, new species. 



10. Leucandra foHata, new species. 



11. Leucandra kurilensis, new species. 



12. Leucandra splendens, new species. 



13. Leucopsila stylifera (O. Schmidt). 



Next follows a list of the stations, showing their position, depth, 

 and the species obtained at each : 



Station 4777. 52° 11' N. ; 179° 49' E. ; about 12 miles north of Semisopochnoi 

 Island, Aleutian Islands ; 52 fathoms Leucandra poculiformis, new species. 



Proceedings U. S. National Museum Vol. 54— No. 2247. 



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