184 MR. LUBBOCK ON SOME OCEANIC ENTOMOSTRACA 



Sapphimxa. 

 A. Conspicilla contirjua. 

 Sappiiiuina cylindkica, n. s. Maris conspicilla contigua, fronti insita. Antennarum 

 jiosticarum digitus articulo secundo paulo longior. Corpus depressum, elongatum, 

 postice nou attenuatum, 10-articulatum, segmento ultimo parvo, tecto. Lamellse 

 caudales oblongse, segmento penultimo non lougiores. Setae lamellseque caudales 

 eadem fere longitudiije. 

 The peculiar outline of the body distinguishes at once this species from all those 

 described by Dana, at the same time most nearly reseml^ling his S. metall'ma. He does 

 not figure nor describe the second pair of antennae in that species ; and I am therefore 

 unable to compare them with those of S. cylindrica, which, as is shown in PL XXIX. fig. 

 14-, are somewhat unlike those of its congeners. The branches of the natatory legs are 

 all three-jointed. The anterior antennae are short, with only four or perhaps five 

 segments, gradually diminishing in size and length towards the apex. The hairs are 

 rather longer than the organ itself. 



Collected April 9, at 6 a.m. S. lat. 0° 40' ; W. long. 0° 20'. 



Pl. XXIX. fig. 13, X 15 ; fig. 14. antenna of second pair, x GO ; fig. 15. caudal lamella, x 60. 



Sapphirina nitens, n. s. Conspicilla fere contigua. Digitus antennarum posticarum 

 paulo longior quani articulus secundus, articulis duobus digiti insequis ; unguiculo 

 In-evi. Lamellae caudales ovatae, ad apicem rotundata:, prope apicem internum 

 dente acuto armatae, setis qtiatuor, dimidio lauiellas brevioribus. 

 This species is very nearly allied to S. cornsccms of Dana, from which it diff'ers in the 

 length of the two-jointed finger, which (without the claw) is rather longer than the 

 second segment. The mcde has five thoracic segments, which diminish in length (and also 

 slightly in breadth) from the front backwards. The abdominal segments are also five in 

 number, and diminish slightly in size like those of the thorax. They are not so much 

 pointed behind as in Dana's figure of S. coruscans. In the female the first abdominal 

 segment is short and with the sides truncated ; the second is rounded ; the third, fourth, 

 and fifth lunate. The caudal stylets are ovate, about twice as long as broad. There are 

 four short setae, and a little spine on the inner apex. The setae are not more than one- 

 third as long as the lamella. The lamellae of the male and female seemed to vary a little 

 in shape and in the position of the two apical hairs. 

 Collected, 8 A.M., April 27, 1858. S. lat. 0° 40',; W.long. 0° 20'. 

 Also November 22, 1858. S. lat. 40° 53' ; E. long. 45° 22'. 



Pl. XXIX. fig. 16 ; fig. 1 7- antenna of second pair, x 60. 



Sapphirina elegans, n. s. Conspicilla contigua. Antennarum posticarum digitus 

 articulusque secundus fere aequales, articulis digiti inaequis, unguiculo vix dimidii 

 digiti. Cephalothorax 5-articulatus, segmento postico lunato, latere rotvxndato. 

 Abdomen 6-articulatum, articulis tertio quarto quintoque lunatis. Lamellae cauda- 

 les ovatae, latitudine plus duplo longiores, apice interno denticulato, setis quatuor 

 parvulis. 



