4 MR. r. CHAPMAN ON SOME [Jail. 15, 



two birds being sexes of the same species.' I may add that the 

 present specimen is the only one oi: this hybrid that ^ I have ever 

 handled, or, to the best of my recollection, ever seen." 



The Eev. T. E.. R. iStebbing exhibited a specimen of a species 

 of Pervpatua from Antigua. 



The following papers were read : — 



1. On some Foraminifera obtained by the Royal Indian 

 Marine Survey's S.S. 'Investigator/ from the Ara- 

 bian Sea, near the Laccadive Islands. By Frbdekick 

 Chapman, F.R.M.S. 



[Eeceived Koveinber 7, 1894.] 

 (Plate I.) 



On the 25tb of July, 1893, 1 received some samples of deep- 

 sea soundings from Mr. T. H. Holland, F.G.S., Assistant-Super- 

 intendent of the Geological Survey of India, who, in conjunction 

 with Dr. Alcock, Surgeon-Naturalist in the Royal Indian Marine 

 Survey Department, has very kindly placed the material in my 

 hands for description. 



The results of a somewhat exhaustive examination of the 

 soundings appear to be of sufiicient interest for publication. 

 Moreover, the locality from whence these soundings were obtained 

 is sufliciently out of the path of former expeditious to make the list 

 useful. The soundings were obtained by the Royal Indian Marine 

 Survey's steamship 'Investigator' from a limited area near the 

 Lakadivb (Laccadive) Islands, viz., 15° 30' 4" to 8° 21' 3" N. lat. 

 and 75° 42' 5" to 71° 09' 3" E. long. 



The depths at which the soundings were obtained have not 

 been recorded, but they did not exceed 1238 fathoms. This 

 absence of the record of depths is explained by the fact that the 

 material was originally sent to Mr. Holland for his opinion 

 regarding the supposed occurrence of submarine volcanoes in 

 that part of the Arabian Sea, the search for Foraminifera being 

 undertaken subsequently. Samples of the soundings were sent 

 to me after having been washed for the purpose just stated. 



Mr, Holland has also kindly furnished me with the following 

 notes concerning the temperature of the area from whence the 

 material was taken. — " The lowest bottom temperature recorded 

 was 37° F., several times at about 1130 fathoms; the surface 

 temperature being about 7S°-80° F." 



The material was sent in six bottles, each sample appearing to 

 represent a mixture of several distinct soundings. The samples 

 are labelled thus : — 



