424 Mr. R. T. Giinther on 



at the depths indicated in the previous cohimn. The figures 

 in tlie next give the total number of species captured in the 

 haul, and tlie remaining columns show the proportions in 

 which different species or groups of species occur in each 

 catch. 



It must, of course, be remembered that the distribution of 

 life indicated in the table may only hold good for the late 

 season of the year, and it is desirable that other collections 

 should be made at other seasons and by nets which could 

 be opened or closed with certainty at any desired depth. 



The table shows that the richest hauls were made from 

 depths below 1000 fathoms. The results of 32 hauls were 

 submitted to me for examination ; 1 7 hauls were from above 

 1000 fathoms and 15 from below 1000 fathoms. The average 

 number of Coeleuterate specimens from the deeper hauls was 

 about 21, whereas about 5 (that is, only a quarter) came 

 on the average from the hauls of less than 1000 fathoms. 

 It will, of course, remain an open question whether any 

 individual specimen was caught at a considerable depth or 

 quite near the surface ; but I think that the figures just given 

 demonstrate conclusively that the deeper waters, i. e. below 

 1000 fathoms, are not less densely populated than the more 

 superficial waters, and that they teem with Coelenterate 

 life. And when a particular species is repeatedly present 

 in the deeper hauls but is entirely absent from the more 

 superficial^ it may be assumed to be peculiar to the deep 

 water. 



ANTHOMEDUS.^. 

 Tiaridse. 



Byihotiara Murrayi, gen. et sp. n. 

 (PI. X. figs. 4 & 5.) 



A single specimen of this interesting new form was obtained 

 in a haul from a depth of 1610 fathoms in lat. 52° 18'-1 N., 

 long. 15° 53'"9 W. It was nearly globular in shape and 

 7 millim. in diameter. In general characteristics, and in the 

 disposition of the gonads upon the manubrium, this Medusa 

 resembles the Tiarid Anthomedusse ; but whereas the four 

 radial canals in the latter are said to be, so far as I know 

 without recorded exception, simple, in the new Medusa they 

 fork at a short distance from the base of the manubrium ; 

 so that at first sight it seemed as if this form really belonged 

 to the Cannotidte, but the genital ridges are distinctly inter- 

 radial iu position,, having nothing to do with the radial 



