368 



bulletin: museum of comparative zoology, 



Fig, 12. Fig. 13. 



Fig. 12. — Spherillo testudinalis. First and .sec- 

 ond thoracic segments. (Lateral view). 16. X 



Fig. 13. — Spherillo testudinalis. Head and first 

 three thoracic segments. (Ventral view). 16. X 



of the segment in the form of a small cleft on the posterior margin 

 a short distance from the lateral margin. On the underside the coxo- 

 podite is separated only posteriorly in the form of a tooth. The six 

 following segments of the thorax are subequal in length. The coxo- 

 podites of the second segment are small, but quite prominent on the 



underside, and are in the 

 form of a sharp tooth. 

 The coxopodites of the 

 third and fourth segments 

 are small and are repre- 

 sented on the upper part 

 of the underside of the 

 segments by a thickened 

 ridge. In the last three 

 segments the coxopodites 

 are large and prominent and are in the form of thickened processes 

 on the underside. 



The first five segments of the abdomen are about equal in length. 

 The lateral parts of the first two are covered by the last thoracic 

 segment. The lateral parts of the third, fourth, and fifth segments 

 are expanded and the third segment has distinct coxopodites on the 

 underside similar to those of the preceding thoracic segments. The 

 terminal abdominal segment is tetragonal, wider at the base than at 

 the apex, which is truncate, and contracted in the middle. The uro- 

 poda are short, not reaching beyond the extremity of the last abdomi- 

 nal segment. The basal article is large, wide, truncate at the apex, 

 and occupies all the space between the last segment of the abdomen 

 and the lateral parts of the preceding segment. The outer branch 

 is small, conical, and placed on the dorsal side of the basal article in a 



groove which extends to 

 the middle of the dorsal 

 side. The inner branch is 

 small and narrow and does 

 not c^uite reach the ex- 

 tremity of the last ab- 

 dominal segment on the 

 underside. 



In color it is dark brown 

 with patches of light brown 

 at the sides of the body in which are wavy lines of dark brown. A 

 dark band extends along the median line. Patches of light brown 

 extend also along the lateral parts ofthe segments. 



Fig. 14. 



Fig. 14. — Spherillo testudinalis. 

 ment of abdomen with "uropoda. 

 41. X 



Fig. 15. — Spherillo testudinalis. 



Fig. 15. 

 Terminal seg- 

 ( Dorsal view). 



Terminal seg- 



ment of 

 view). 41 



abdomen 

 X 



with uropoda. (Ventral 



