53 



d. Trunci segmentum primum epimeris crassis, post 

 fissis, margine lateral! per totam longitudinem 

 sulcato. 

 Sectio V. Typus: Spherillo grossus B.-L. species 9 — 12. 



dd. Trunci segmentum primum epimeris crassioribus, 

 plica inferiore minore instructis, margine laterali 

 non sulcato. 

 Sectio VI. Typus: Spherillo amhitiosus B.-L. species 13—15. 



ddd. Trunci segmentum primum epimeris subtenuibus, 

 revolutis, post fissis, margine laterali non sulcato. 

 Sectio VII. Typus: Spherillo rugulosus Miers. species 16. 



dddd. Trunci segmentum primum epimeris tenuibus, in- 

 tegris. 

 Sectio VIII. Typus: Spherillo hifrons B.-L. species 17—25. 

 bb. Pleopodes primi paris in femina area opercular! nulla. 



c. Trunci segmentum 1. epimeris minus crassis vel tenuibus, 

 post aut integris aut leviter fissis aut plica vel dente in- 

 feriore parvo instructis, margine laterali non sulcato. 

 d. Epistoma margine superiore utrinque tumido. 

 Trunci segmentum 1. epimeris post integris. 

 Sectio IX. Typus: Spherillo dispersus B.-L. species 26—27. 



dd. Epistoma margine superiore simplici, frontem aut 

 plus aut minus aut non superante. 

 e. Caput vertice crassiore. 



Trunci segmentum 1. epimeris post integris, 

 dente inferiore instructis. 

 Sectio X. Typus: Spherillo rugosus B.-L. species 28—35. 

 ee. Caput vertice tenui. 



f. Telsum margine postico triangulo pro- 

 ducto. 



Trunci segmentum 1. epimeris post inte- 

 gris, plica inferiore instructis. 



Sectio XL Typus: Spherillo bicoloratus B.-L. species 36—37. 

 ff. Telsum margine postico subrecto. 



Sectio XII. Typus: Spherillo testudinalis B.-L. species 38—^7. 



cc. Trunci segmentum 1. epimeris crassis, margine laterali 

 per longitudinem sulcato, post fisso. 

 Sectio XIII. Typus: Spherillo montivagus B.-L. species 48—65. 



Sectio I. I know but one species belonging to this 

 group; I refer to the description given by me of this spe- 



