I. '08. 83 



of many deep water Natantia that it was thought possible that 

 Bresilia might, by further growth, be modified so far as to 

 justify its inchision in some well known family of Caridea. 

 Coutiere (1907) remarks on its resemblance to Caridion and 

 refers it tentatively to the family Hippolytidae. Neverthe- 

 less the additional material found by the Helga has com- 

 pletely vindicated Caiman's view, for one of the specimens 

 bears on the inner branch of the second pair of pleopods the 

 accessory stylet or appendix wascidina (fig. 6) which, so far as 

 is yet known, is found only in males which are almost or fully 

 adult. Short of the capture of an ovigerous female, no 

 stronger evidence in favour of the maturity of a Carid can be 

 adduced. 



This male measures only about 20 mm. and is therefore 

 considerably smaller than the type (29 mm.) ; two of the re- 

 maining specimens measure 20 and 23 mm. respectively and 

 (like the type) are presumably female. The fourth example 

 is 17 mm. in length and maj^ be of either sex. Little can be 

 added to Caiman's lt)ng and complete description. The 

 rostrum (figs. 2 and 3) is provided with sharp dorsal and ven- 

 tral teeth (not blunt as in the type) the number of which 

 seems subject to considerable variation ; the four specimens 

 show 4/4^ 4^'2, 3/3, and 3/3 respectively. In the eyes the corneal area, 

 though without a trace of black pigmentation, is distinctly 

 defined from the stalk and shows very faint traces of facets. 

 The mandibles, maxillae, maxillipedes and pereiopods all 

 agree closely with the figures published in 1896. Caiman's 

 reading of the branchial formula is also confirmed — four 

 pleurobranchs are found over the bases of the first four pereio- 

 pods and a papilla, representative of a nidimentary pleuro- 

 branch, above the fifth pereiopod. 



In the male the endopod of the first pair of pleopods (fig. 7) 

 is about half the length of the exopod ; apically it is deeply 

 emarginate and is furnished with setae on both anterior and 

 posterior margins, the latter possessing a greater number than 

 the former. In the female this endopod is almost exactly 

 similar in shape, but seems to be more abundantly provided 

 with setae on its anterior margin. 



The telson bears from six to eleven pairs of dorso-lateral 

 spinules ; distally it is truncate and rather rounded and bears 

 twelve spines, of which the outermost are much the longest. 



Colour in life. — The carapace is semi-translucent, anteriorly 

 very pale orange pink, verging to red at the orbital notch. 

 The first three abdominal somites are colourless, the last three 

 and the margins of the telson are pale vermilion. The eye- 

 stalk is vermilion, the cornea whitish orange and strongly re- 

 fractive. The lower half of the basal joint of the antennular 

 peduncle is vermilion ; otherwise the antennules, antennae, and 

 antenna! scales are quite transparent The third maxillipedes 

 are tinged with vermilion proximally and similar colouration 

 prevails on the basal joints of the pereiopods. The red tone is 

 found on the coxa, basus and ischium of all the legs; in the 



F 2 



