55 



group is known, and the chief characters are given in the 

 description of the species below. 



6. Spherillo sellers. 

 (Tab. VII fig. 16-17). 



Superficies Isevis, nitida, minutissime reticulate punctata. 



Oculi mediocres, ocelli numero c. 20. 



Epistoma convexum, supra paulum reflexum, inargine 

 superiore frontem nonnihil superante, cum linea marginali 

 laterali capitis utrinque ante oculos ascendente conjuncto. 

 Clypeus subperpendicularis, brevis, lobis lateralibus majori- 

 bus, oblonge ovalibus. 



Trunci segmentum 1, margine laterali crasso, per totam 

 longitudinem profunde sulcato, ante in angulum acutum 

 producto, post profunde et subaequaliter fisso: lacinia inte- 

 rior exteriore vix major. Epimerum segmenti 2. dente parvo, 

 interiore munitum; epimerum segmentorum 5.-6.-7. dupli- 

 catura interiore magna sed minus manifesta munitum. Pro- 

 notum segmenti 2. breve, vix plus quam decimam partem 

 dorsi explens; segmenti 6. pronotum fere sextam partem 

 explet. 



Caudse segmenta epimeris simplicibus, subacute rectan- 

 gulis, nulla duplicatura et nullo processu inflexo instructis. 

 Pleopodes primi paris in feniina nullam aream opercularem 

 solum tracheam habent. 



Telsum mediocre, quarta parte latius quam longius; 

 basis paulo latior quam apex; in medio satis coarctatum, 

 supra convexiusculum, in basi utrinque leviter impressum, 

 margine postico leviter rotundato. 



Uropodum scapus paulo longior quam latior, postice 

 valde, subtriangule angustatus. Exopoditum minutissimum, 

 supra procul ab apice et paulum a latere interiore scapi po- 

 situm. Endopoditum telso paulo brevius. 



Subunicolor, griseus. 



Long. 9,5 m. m. Lat. 5 m. m. 



Patria: At Rockhampton in New-Holland. I have seen 

 but one specimen of this species; it was at that time over- 



