220 Bulletin Vanderbilt Marine Museum, Vol, VI 



Distribution : Queensland ; known only from the type and 

 the "Alva" specimen. 



Material examined: One specimen, taken in coral, Ingram 

 Island, Queensland, October 12, 1931. 



Technical description : Body narrowly suboval, three and 

 three-fifths times as long as the greatest width, which occurs 

 across the fifth and sixth thoracic segments; dorsal surface 

 punctate. The posterior margins of the thoracic segments and 

 epimera are finely setigerous ; the abdominal segments are simi- 

 larly setigerous ; the telson is finely hirsute dorsally as well as the 

 margins ; the uropoda have the margins setigerous. 



Head: This is two and one-half times as wide as the median 

 length, with the frontal margin produced to a narrowed median, 

 subtriangulate process that partly separates the antennae and 

 nearly touches the frontal lamina. The eyes are large, dorsolateral 

 in position, the greater portion of their surface being dorsal, ex- 

 tending from the posterior margin almost to the frontal margin 

 and being well separated from each other by a space slightly 

 narrower than the width of one eye. The first pair of antennae 

 have the basal article dilated, nearly as wide as long, somewhat 

 flattened and fitting closely to the head ; the second article is about 

 as long as the first, but slender, cylindrical ; the flagellum is com- 

 posed of nine slender, tapered articles. The second pair of an- 

 tennae extend to about midway the length of the fourth thoracic 

 segment. The first, second and third peduncular articles are short, 

 stocky, subequal, considered together they are about equal to the 

 fourth article, which is slender, cylindrical, a trifle shorter than 

 the otherwise similar fifth article ; the flagellum is almost twice as 

 long as the peduncle and consists of twenty-eight articles and a 

 terminal style. The frontal lamina is narrow, pentagonal, with 

 the posterior margin incised. The clypeus is wide, V-shaped. The 

 mandibles are elongate, the molar process represented by a weak 

 blade; the palp is slender, with the first article scarcely half as 

 long as the second ; the third article is subequal to the first article. 

 The first maxillae have the outer lobe terminating in a strong hook, 

 which bears at the inner side of its base three curved spines, one 

 being nearly half as long as the distal hook. The inner lobe is 

 bluntly truncate distally. The second maxillae are shorter and 

 smaller than the first with the apex simple. The maxillipeds have 

 a five-jointed palp. 



