Carpenter — The Apterygota of the Seychelles. 37 



(fig. 75«) has two large teeth, with a couple of small rounded tubercles 

 between them. The maxillulae and tongue (fig. 76) are like those of Orche- 

 sella as described and figui'ed by Folsom ('99i). The maxilhda (fig. 76, M:rl) 

 has its distal free end angular, with two sub-acute prominences ; along the 

 proximal region of its inner edge is the usual row of denticles— the distal few 

 being blunt, the rest relatively long and sharp. The tmigue (fig. 76 hy) is — 

 like that of Orchesella (Folsom, '996, pi. .3, fig.2.3) — broad distally, with rounded 

 edges and dorsal depressions bounded by toothed ridges; the supporting foot 

 of the tongue (fig. 76 jjrf) is strikingly like that of Orchesella. So are the 

 cardo and stipes of the maxilla (fig. 76 c. st.), the sub-cylindrical galea 

 '(fig. 76 g) — according to the highly probable and ingenious interpretation of 

 Borner ('08) — and the vestigial palp (fig. 76 ^j), with its long, acuminate 

 bristle, being of the usual Collembolan type. The head of the maxillary 

 lacinia (fig. 77) has three strong external teeth — regarded by Folsom and 

 most students as representing the galea — four lamellae (fig. 77 Im), composed 

 of closely approximated bristles, and a conspicuous " brush " (6r), consisting 

 of an axis, with lateral filaments resembling an ostrich-plume in appearance. 

 This structure certainly corresponds with the brush of the maxillary lacinia 

 in Corethromachilis, described above (pp. 4, 6, PI. I, figs. 7-8), and in the 

 " Mittelanhang " figured by Borner ('08, PI. VII, fig. 12) as present in the 

 lacinial head of Tetradontophora, which it resembles rather closely. 



Food material is visible in the intestines of several examples of this species. 

 It consists entirely of fungus hyphae, and conidia, the latter more fragmental 

 than in the rectum of Lepidocampa (see above, p. 28), but apparently also 

 referable to Helminthosporium. 



ENTOMOBEYINI. * 



Entomobrya Eondani. 



Degeeria Nicolet, Lubbock, etc. 



This widespread genus of spring-tails, characterized by the absence of 



scales, the great length of the fourth abdominal segment, and the foot with a 



conspicuous tenent hair, is represented in the Seychelles collection by a single 



species, which appears to be undescribed. 



Entomobrya seychellarum sp. nov. 

 (Plate XV, figs. 25-27.) 

 Feelers nearly tw?ce as long as head, proportion of their segments as 

 3:6:5:8. Fourth abdominal segment three and a half times as long as 

 third. Foot-claw with three teeth (fig. 26). Mucro of spring with the usual 

 terminal and dorsal curved teeth, the dorsal spine slightly bent (fig. 27). 

 Colour cream-yellow with violet markings, comprising a streak along 



