XI 



Anthoptilum murrayi, Kolliker. N. Atlantic, S. of Halifax (Challenger) ; E. coast 



of N. America (Verrill) ; Bay of Gascony, S. of Iceland (Jungersen). 

 Funiculina quadrangularis (Pallas) = Leptoptilum gracile, Kolliker. New 



Zealand, as L. gracile (Challenger) ; as F. quadrangularis, North Sea, 



Atlantic Ocean, European and American sides, Mediterranean, etc. 

 Pavonaria willemoesii (Kolliker) = Microptilum willemoesii, Kolliker. As M. 



willemoesii from south of Yeddo (Challenger). 

 Among the new facts of distribution, perhaps the following are of most interest : 

 Stachyodes allmani, Wright and Studer. From the Laccadive Sea (Investigator) ; 



previously from the reefs, Fiji. 

 CaUistephanus koreni, Wright and Studer. From the Andaman Sea (Investigator) ; 



previously from off Ascension. 

 Juncella elongata, Pallas. From the Bay of Bengal (Investigator) ; previously 



from Atlantic, West Indies, N.E. coast of Australia, and Algoa Bay. 

 Distichoptilum gracile, Verrill. From Investigator Station 231, 7° 34' 30" N., 



76° 08' 23" E., and 321, 5° 4' ^ N., 80° 22' E. ; previously from North 



Atlantic, S.W. of Nantucket Island, etc. 

 Umbelhda durissima, Kolliker. From Laccadives (Investigator) ; previously from 



S. of Yeddo and Antarctic. 

 Anthoptilum murrayi, Kolliker. From Investigator Station 104, 11° 12' 47" N., 



74° 25' 30" E. ; previously from N. Atlantic, Bay of Gascony, S. of 



Iceland. 

 Funiculina^ quadrangularis (P&llsis) = Leptoptilicm gracile, Kolliker. From 



Bay of Bengal (" Investigator "), as Leptoptilum gracile, and previously from 



New Zealand. F. quadrangidaris, previously from North Sea, Atlantic, 



Mediterranean, etc. 

 Pavonaria^ ivillemoesii (Kolliker) = Microptilum tvillemoesii, Kolliker. From 



Andaman Sea ; previously as M. ivillemoesii from Japan. 

 The wide distribution of some deep-sea types is thus well illustrated. 



Som^ Matters of Detail. 



It may be convenient to direct attention here to some matters of detail that 

 are of general interest. 



The siliceous axis which forms the support of Sarcophytum aherrans, n. sp., 

 is 300 mm. in length by 2-3 mm. in b adth, and is probably the huge spicule of 

 Monorhaphis or some allied sponge. (See Plate I. fig. 2c.) 



Analogous, on a smaller scale, is the siliceous sponge-spicule, which serves 

 as a support for Sympoditim incrustans, n. sp. (See Plate II. fig. 7.) 



1 It is possible that our Funiculina quadrangularis is the youug form of some other species of 

 Funiculina, and that our Pavonaria mllemomi is the young form of some already known species of 

 PavoiMria. 



