NO. 3580 OSTRACOD FAMILIES — KORNICKER 15 



bristles terminal; 2nd joint with 1 short dorsal bristle proximal to 

 middle, 3 dorsal bristles near middle, 1 short ventral bristle distally, 

 and 2 short terminal bristles near ventral margin; end joint (fig. 7A:) 

 with 3 bristles and 2 claws, 1 of latter very long, other about 3rd 

 length of long claw. Terminal end of 1st endopodite joint with 

 spines in row. 



The mandible of the species illustrated by Miiller (1894, pi. 3, 

 fig. 51) has only 2 ventral bristles distally on the 1st endopodite joint, 

 only 2 dorsal bristles in the distal group on the 2nd endopodite joint, 

 and does not show 2 small bristles terminally on the 2nd endopodite 

 joint or a small centrally located terminal bristle on the end joint. 

 These were probably overlooked by Miiller. 



Maxilla (fig. 71 7n): Precoxale endite with 3 stout pectinate spines 

 and 2 bristles. Coxale endite with 2 pectinate spines and 2 bristles. 

 Distally of coxale endite a short lobe with 3 bristles. Basale with 1 

 medial bristle and 2 bristles on inner margui. Exopodite consisting 

 of 3 lateral bristles located distally on basale. Endopodite: 1st joint 

 with 1 subterminal and 1 terminal bristle; 2nd jomt with 1 short and 

 2 long bristles and a slender process with annulations distally. 



Miiller (1894, pi. 3, fig. 49) illustrates the slender process on the end 

 joint of the endopodite as a bristle. Although the process resembles 

 a stout bristle, it is ringed only distally and is less tapered than a 

 bristle would be. Miiller's illustration does not have the 3 bristles I 

 interpret as the exopodite. The specimen I examined does not have 

 a bristle on the distal margin of the coxale, possibly it broke off during 

 the dissection. Unfortunately the left maxilla was lost so that I had 

 the opportunity to examine only the right maxilla. 



Fifth Iknb (figs. 8a-e) : Fu-st jomt with 2 large teeth ; proxunal tooth 

 trident with 2 or 3 bristles, forward tooth spmous on posterior margin; 

 distal tooth bifid with small secondary tooth above base of lead tooth, 

 forward tooth with spines on leading and posterior margins, spines 

 larger on leadmg margin. Second joint prolonged distally formmg 

 long fanglike tooth followed along the mner margm by a smgle tooth 

 and 2 trident teeth; posterior surface with 1 long and 1 short bristle. 

 Thkd joint with 2 spinous bristles near base of 4th joint. Fourth 

 joint hhsute with 4 or 5 bristles. Inner margin of protopodite with 

 single endite with 1 or 2 minute bristles. _ 



The taxonomicaUy unportant inner margin of the 2nd joint with its 

 3 teeth is not shown in the view of this appendage illustrated by 

 MuUer (1894, pi. 3, figs. 43, 46). The fanglike tooth d^tally on the 

 2nd joint is much longer on the specimen I exammed than won d be 

 suspected from examination of MuUer's Ulustrations. Possibly short- 

 ness of that tooth in Miiller's illustration is the result of foreshortenmg, 

 which results when an appendage is mounted obliquely on the slide. 



