8 ZOOLOGY OF THE VOYAGE OF H.M.S. SAMARANG. 



Posterior margin of the carapace armed on the median line with a small spine : latero- 

 anterior borders of the carapace armed with four short spines, the posterior of which is not 

 larger than the others : second pair of legs not quite twice the length of the carapace. 



Hab. India. 



Boclea liylrida, Edw. Crust. 1. 294 ; Inachns hgbridus, Pabr. Suppl. p. 355 ; Jlfaia hyhrida, Bosc. 

 t. 1. p. 256 ; Latr. Hist. Nat. des Crust, t. 6, p. 99. 



4. DOCLEA MTJRICATA, Edwards. 



Posteriore thoracis margine magna, mediana, spina, armato ; latero-anterioribus marginibus quatuor 

 spinis arrnatis, posteriore reliquis multo majore. 

 Hab. Indiam. 



Posterior margin of the carapace armed with a large median spine ; latero-anterior 

 margins armed with four spines, the posterior of which is much larger than the others. 

 Hab. India. 



Doclea muricata, Edw. Crust. 1. 295; Cancer muricatus, Herbst. 1. 211. t. 14. f. 83.; Fabr. Ent. 

 Syst. Suppl. 355. 



II. MAIAD^E. 



In the family of the Maidce, many new and interesting forms, hitherto unknown, are 

 here, for the first time, indicated, including two new genera and seventeen new species. In 

 their habits, these Crustacea resemble the Inachidce, being very inert and apathetic, not 

 using their chela? in self-defence, and covering themselves very frequently with foreign bodies. 

 They appear to be diffused pretty equally over the globe, Chorinus being found both in the 

 east and west : Mithrax and Libinia seem to be confined to the New World ; Micippe and 

 Pericera are tropical genera, as are also Huenia and Mencsthius; while Maia, Hyas, 

 Jrctopsis, and Pisa, are found in the countries of Europe. 



1. PISA, Leach. 



1. PISA SINOPE, Adams Sf White. 



Thorace serie tuberculorum magnitudine diversa, in linea intermedia, serie septem tuberculorum in 

 quaque regione laterak' ; proprius lineam intermedial quinque abis tuberculis seriatim dispositis ; lateribus 

 quinque spinis, postrema reliquis rigidiore et eminentiore ; tota superficies thoracis, tuberculis admodum 

 minutis et tenuibus, curvatis, sparsis setis obsita est. Fronte duobus spinis rigidis, divaricantibus, curvatis 

 setis circumdatis ; superiore canthorum margine piano spina una, antice et spina rigida angulari projecta 

 profunda incisione in fronte. Clielis lsevibus, postfrontalem thoracis partem longitudine exsequantibus • 

 pedes poderioribits fuscis tuberculis admodum minutis obsitis, et tenuibus sparsis setis circumdatis. 



Hab. Insulas Philippinas. 



Carapace with a row of tubercles varying in size in the middle line, a row of seven 

 tubercles in each lateral region, internal to these, nearer the middle line, five other tubercles 

 in a linear series ; sides with five spines, the hind one stronger and more prominent than the 



