the base; the axillaries an r than broad with ;i strongly produced distal angle and an 



[ually long, but bn ss which rises into a faint rounded median carination; 



tlit l brachials are much longer than broad with a faint median carination running their 



•ire length; and the following brachials are slightly raised in the mid-dorsal line, the rai 



portion bearii ous very fine spines. 



2. Fan • .' (A. 11. Clark). 



A. II. <■ LARK. Smithsonian Miscellaneous Collections (Quarterly Issue), vol. 52, [908, part 2, 



tetra explica 

 ( of the Indian Ocean, 1912, p. 239 [Trichotnetra explicata). 



Specimens are at hand from the following localities: 



-t of Mindoro, Philippines, in 509 Metres ("Albatross" Stat. 5123; Cat. N" 25425 

 l'.S. National Museum). 

 Ven Philippines, in 612 Metres ("Albatross" Stat. 5 1 1 5 ; Cat. N" 36014 



l'. S. National Museum). 



twan Passage, Philippines, in 1314 Metres ("Albatross" Stat. 5349; Cat. N" 36043 U.S. 

 Nal kiseum). 



Fariometra dionc sp. nov. 



.t. 85. o°36'.5S., H9°29'.5 E. Makassar Straits. 724 Metres. 1 Ex. 



The centrodorsal is conical, the sides practically straight, 2.0 mm. in diameter at the 

 i-e and 2.6 mm. from the apex to the interradial border, and is closely set with about one 

 lnmdred rirrus sockets of which about one half appear to be of ftill size. 



The radials are just visible beyond the rim of the centrodorsal in the median line, but 

 nd well up in the angles of the calyx ; their distal angles are slightly separated. 



Viewed perpendicularly to the plane of their dorsal surface the IBr, are very short and 

 band-like, tïve to six times as broad as long, the proximal and distal borders parallel, the 

 distal angles broadly rounded off and finely spinous. If the anima] is viewed at right angles 

 the dorsoventral axis the IBr, are seen tp be very strongly convex dorsally and. since the 

 plane of their mid-dorsal line is at right angles to that of the dorsoventral axis, they appear 

 in I by thi ior process of the axillaries. 



The [Br axillaries are about as broad as long with very strongly concave sides; as 



a result of the broad rounding <>\ï of the distal angles of the [Br, their lateral angles, the 



proximal of which are horizontal, overhang for a very considerable distance the distal 



thi IBr, so that large rhombic water pores are formeel between the [Br series. There 



ar> Jateral pre on the elements of the IBr series, or on the first two brachials. 



first brachials are very short, the inner two thirds very narrow and band-like, the 



lly increasing in length so that th( Ier i from three to tour times 



inner, or the median length; interiorly their bases are not in apposition, and 



at somewhal more than a right angle. 



brachials are irregularly quadrate, somewhat broader than long: their inner 



