CEUSTACEA. 15 



Surface covered with small warts, arranged in some places in lines, with hairs proceeding 

 from the front of them. 



The specimen is a male. 



9. MAI A, Lamarck. 



1. MAIA SPINIGEBA, Be Haan. 



Spiiiis lateribus et frontalibus quartam partem longitudinis postfrontalis emetientibus, acuminatis ; 

 spinis quinque dimidio brevioribus, pone medium transversim dispositis; verrucis in spatio intermedio 

 minutis, sequalibus. 



Hab. Japoniam. 



Lateral and frontal spines pointed, measuring a fourth part of the length of the post- 

 frontal part of the carapace ; five spines, half the size, arranged transversely behind the 

 middle, with minute, equal-sized warts in the intermediate space. 



Hab. Japan. 



Maja {Maja) spinigera, De Haan, Faun. Japon. p. 93. Tab. 24. fig. 4. 



10. DIONE, De Haan. 



1. DIONE AFFINIS, Be Haan. 



Thorace granulate-, et acute spinuloso ; cornubus rostri ter longioribus quam latis, apice acutis ; lateribus 

 spina dimidio breviore armatis ; digitis superioribus parte media unispinosis. 

 Hab. Japoniam. 



Carapace granulated and acutely spinulose, horns of the front three times as long as 

 wide, and with the points sharp, sides armed with a spine, half as large, one spine in the 

 middle of the upper finger of the fore-legs. 



Hab. Japan. 



Maja (Bione) affinis, De Haan, F. J. p. 94. t. 22. f. 4. 



11. MICIPPA, Leach. 



1. MICIPPA THALIA, Herbst. 



Pedibus posterioribus thoracem postfrontalem vix superantibus ; fronte ultra medium in comua duo 

 extrorsum versa divisa. 

 Hab. Japoniam. 



The hinder legs scarcely extending beyond the post-frontal thorax ; front beyond the 

 middle, divided into two horns turned outwards. 

 Hab. Japan. 

 Pisa {Micippa) Thalia, De Haan, F. J. p. 98. t. 23. f. 3. (mas) ; Cancer Thalia, Herbst. t. 58. f. 3. 



2. MICIPPA PHILTEA, Leach. 



Thorace tuberculis granulosis obsito : baud tamen in superfieie superiore spinoso. 



