302 H. Richardson — Isopods of the Bermudas. 



Porcellio parvicornis Eichardson, sp. nov. 



Plate XL. Figure 57. 



Body ovate, surface marked with minute granulations. Color 

 yellow, with markings of light brown. 



Head with median lobe small, widely rounded. Lateral lobes 

 small, rounded. Eyes distinct, and situated on lateral lobes of head. 

 Exterior antennae short, about one-third the length of the body : 

 flagellum two-jointed, first joint very much shorter than second 

 joint, about one third shorter. 



Thoracic segments subequal, with the exception of the first, which 

 is a little longer than any of the others. 



First two abdominal segments with lateral j^arts hidden by the 

 preceding thoracic segment. Three following segments with lateral 

 parts expanded, the margins continuing the oval outlines of the body. 

 Terminal segment triangular, with sides somewhat incurved and 

 rounded at the apex. Basal joint of uropoda reaching a little 

 more than half the length of the last abdominal segment. Inner 

 branch extends a short distance beyond the terminal segment of the 

 body; outer branch extends but very little beyond inner branch. 



One specimen w^as collected by A. E. Verrill at the Bermudas in 

 1901. 



Tvpe specimen in Peabody Museum, Yale University. Cat. No. 

 3353. 



Metoponorthus sexfasciatus Budde-Liuid. 



Metoponorthxis sexfasciatus Budde-Lniid, Crust. Isop. Terrestria, pp. 167-168, 

 1885. Dollfus, Bull. Soc. d'Etudes Scientifiques de Paris, xiith year, p. 4, 

 1890. 



Hab. Bermudas (Dollfus). Also Mediterranean and Canaries, 

 Madeira, Azores, Spain, France, Algeria. 



Metoponorthus pruinosus (Brandt). 



Porcellio 2)ritinosus Brandt, Consp. Monogr. Crust. Isop. terrestr.,p. 19, fig. 21. 



1838. 

 Porcellio maculicornis Koch, Deutschlands Crustaceen, p. 34, 1840. Stiixberg, 



Ofversigt af Vetensk. Akad. Forhandl., No. 2, p. 55, 1875. 

 Metoponorthus jjrjiinosus Budde-Lund, Crust. Isop. Terrestria, pp. 169, 170, 



1885. Sars, Crust of Norway, ii, pts. ix-x, p. 184, pi. Ixxx, fig. 2, pts. xi. 



xii, p. 185, 1898. (See Budde-Lund for synonymy and full reference.) 



Habitat, Bermudas at Harrington Sound, collected by Prof. Ran- 

 kin, of Princeton ; and at Walsingham, Castle Island, and Tucker's 



