278 Alexander Petninkcvitch, 



Third leg. femur — 5.8 mm., tibia with patella — 5.7 mm., meta- 

 tarsus with tarsus — 8.4 mm., total — 19.9. ; Fourth leg, femur — 

 6.8 mm., tibia with patella — 6.0 mm., metatarsus with tarsus — 

 16.5 mm., total — 29.3 mm. 



It is not possible to determine the sex of the specimen. 



Phalangium lacoei n. sp. {Textfii^ure ^8). 



One specimen No. 38124 in the R. D. Lacoe Collection of the 

 II. S. National Museum. 



This is a considerably larger species than the preceding one 

 and reminds one greatly of the common recent species of 

 Liohunum. The dorsal surface alone is visible, but no traces of 

 segmentation can be made out. Neither are the eyes discernible. 

 A broad median longitudinal band extends from the anterior to the 

 posterior end of the body. The body is clothed with scattered 

 short stout hair. The fourth legs and the left third leg are com- 

 plete. The others are broken off as represented in our figure. 

 The right second leg is misplaced in such a way that it comes to 

 lie between the third and fourth legs, the former being directed 

 forward. It may be recognized however by its heavier femora. 

 Total size — 6 mm., width in middle 4 mm. 



First leg, femur — 4.0 mm., tibia with patella — 5.5 m. ; Second 

 leg, femur — 6.8. ; Third leg. fenun' — 8.3 mm., remaining joints 

 — 16.2 mm., total — 24.5 mm.; Fourth leg, fenuu' — 8.0 mm., 

 remaining joints — 24.0 mm., total 32.0 mm. 



The sex cannot be determined and nothing else can be made out. 



APPENDIX. 



LEGS OF UNCERTAIN ARACHNIDS. 



Scudder has described five legs representing five separate speci- 

 mens, Nos. 3, 4a, 36. 4199 and 4200. He considered these frag- 

 ments as belonging to some species of the genus Epcira. ' I have 

 not seen his specimens 4a and 36. Of the other specimens No. 

 4199 (now No. 115 ) in the Collection of the IMuseum of Compara- 

 tive Zoology of Harvard University is excellently preserved and is 

 reproduced in oiu' texffii^itre ?p. The coxa and trochanter are 

 missing. The femur is 6.4 mm. long with two rows of spines of 

 about 12 spines in each row. The average length of these spines 



