'>7-> 



Mr. E. T. Browne on Ili/JromrJusfe 



the height or nntero-posterior diameter of the second prc- 

 mohAr ; ill //. I icolor the anterior has nearly as great a hori- 

 zontal diameter as the posterior tooth. 



Dimensions of the type : — 



Forearm 42"5 millim. (the second specimen 40). 



Head and body 47 ; t.lil 21 ; head IT'G; nose-leaf G'OX 5 ; 

 ear 15; third finger, metacarpal ."{2, first phalanx 13'5, second 

 phalanx 16; lower leg and foot (c. u.) 23"0 ; calcar 9*5. 



JIah, ]\Iount Mulu, Barain District, Sarawak. 



2)//>e. Adult female. B.M. no. 94.9.29. 10. Collected 

 by Mr. Charles Hose. Two specimens examined. 



This species may be readily distinguished from //. hicolor 

 by its pointed ears, small anterior lower premolar, and the 

 other characters above described. From //. 5«/'ar??f5 *, which 

 shares its unusually small lower premolar, it is separated by 

 its larger nose-leaf, the unnotched front edge of the horseshoe, 

 and the division of the posterior leaf by vertical ridges. 



XLVI. — A Preliminary lieport on Ilydromeduace from the 

 Falkland Islands. By Edward T. Browne, Zoological 

 Kesearch Laboratory, University College, London. 



^\-R. BuPERT Vallentin visited the Falkland Islands during 

 the summer of 1898-99 for the purpose of investigating the 

 marine fauna, and he brought back a fine collection of Me- 

 dusae in an excellent state of preservation. This collection 

 he most kindly placed in my hands without any restrictions. 

 Up to the time of Mr. Vallentin's visit very little was 

 known about the marine fauna of the Falklands. "^riiere had 

 bten no thoiough investigation, and our knowledge was 



1 used paitly upon small collections made by exploring-ships 

 like the' Challeugcr,' which usuallj only stayed u few days, 



and jjartiy upon small collections made by inhabitants and 



sent to friends in this country. 



Cur knowledge of the Medusse was limited to threespecies: — 



llilipocrene AJaclovUma (Lesson), Stomuhrticliiiuu lenticulare, 



Brandt, JJesmonema Gauduhaudi {hesson). 



IJijtpocrene Madoiianu and l)esvwneina Gaudichaudi \\'^\(t 



first described by Lesson (Voyage de la ' Coqudle,' 1829). 



'J he JJijipocrtne is a|)paiently a regular inhabitant ot Stanley 



Harbour. Its hydroid, no doubr, lives there, and probably 



* Anu. >t Mag. Nat. Hist. (7; i. p. 243 (1898). 



