A. E. Verrill — The Bermuda Islands. 



845 



sexfasciatus Budde-Lund; M. pruinosus Br. ; Armadillidium vulgare 

 Latr. (Pill-bug. Figs. 232, b, V). 



The Actoniscus ellipticus Harger is otherwise known only from 

 New England. 



The common bluish gray Ligia Baudiniana M. Edw., which runs 

 very rapidly over the rocks, is found on all the sea-side ledges and 

 cliffs and hides in their crevices. It is widely distributed in the 

 West Indies and Tropical America. Figure 233. 



Ligia oceanica, figure 234, probably also occurs, but we did not 

 obtain it. Its distribution is world-wide in warm climates. 



Figure 230. — Porcellio parvicornis ; Figure 231. — Leptotrichus granulatus ; 

 enlarged ; both after Miss Eichardson. Figure 233. — Ligia Baudiniana 

 xl|; a', uropodial spines. Figure 234. — Ligia oceanica, x 1|. Figure 235. — 

 Philoscia Bermudense Dahl ; a, x 3 ; b, uropodial spines ; c, maxilliped ; 

 d, mandible ; after Dahl. 



Dr. Fr. Dahl (Plankton Exped., i, pt. 1, p. Ill, pi. iii, figs. 2, 4, 5, 

 7, 8, 10, 13, 1892) recorded an additional species of terrestrial isopods, 

 (Philoscia Bermudensis, sp. nov.) See figures 235, a-c. 



40. — Introduction of Earthworms ; Land JVemerteans, etc. 



a. — Earthworms. ( Oligocholia.) 



Whether any earthworms were native to Bermuda is uncertain, 

 though at least one species is not yet known from any other 

 locality. The greater part of the common species have undoubtedly 

 been introduced with the earth around growing plants. Several are 

 well known European species, introduced also into North America. 



The following species have been identified, from our collections, by 

 Dr. J. Percy Moore, who has recently published a list of the species, 

 with descriptions. (See Proc. Philad. Acad., liv, pp. 80-84, 2 cuts, 

 April, 1902.) 



