CRUSTACEA. 5 



3. ACHiEUS, Leach. 



1. ACHJETJS JAPONICUS, Be Haan. 



Eegione ventriculi et cordis convexa ; oculorum pedunculis 4-spinulosis. 



Hab. Japoniam. 



Ventricular and cardiac regions, convex ; peduncles of the eyes with four small spines. 

 Hab. Japan. 



Inachis (Aclums) Japonieus, De Haan, F. J. p. 99. t. 29. f. 3 (femina). 



. 4. LATREILLIA, Boux. 



1. LATREILLIA VALID A, Be Haan. 



Major, thoracis regione ventriculi unispinosa; pedibus postreinis anteriorum pedum feruoribus lon- 

 gioribusj abdominis feminae articulo quarto medio non spinoso; spinis frontalibus in utroque sexu integris, 

 tertia parte thoracis brevioribus. 



Japonice MMm MM gani, i. e., Cancer in formam Polygoni filiformis. 



Hab. Japomam. 



Rather large, thorax with one spine in the ventricular region ; the hind feet longer than 

 the femora of the anterior feet ; the fourth joint of the abdomen, in the female, not spiny in 

 the middle ; the frontal spines, in both sexes, entire, shorter than a third part of the thorax. 



Called in Japanese Midsu MM gani, or Crab of the shape of a filiform Polygonum. 



Hab. Japan. 

 Latreillia valida, De Haan, F. J. p. 107. t. 30. f. 1 (femina). 



2. LATREILLIA PHALANGIUM, Be Haan. 



Minor, thorace in regione ventriculi unispinoso, pedibus postreinis femoribus prfecedentium brevioribus ; 

 abdomine femineo medio bispinoso; spinis frontalibus tertia parte longitudinis thoracis brevioribus, in 

 feminis bispinulosis. 



Hab. Japoniam. 



Rather small, thorax with one spine in the ventricular region, the hind feet shorter than 

 the femora of the preceeding ; abdomen, in the female, with two spines in the middle line ; 

 frontal spines one third shorter in length than the thorax, in the female, bispinulose. 



Hab. Japan. 



Latreillia Phalangium, De Haan, F. J. p. 108. t. 30. 



5. MACROCHEIRA, De Haan. 



1. MACROCHEIRA KiEMPFERI, Be Haan. 



Cornibus frontis extrorsum inflexis ; canthis parte superiore 4-spinosis. 



Japonice Sima-Gani, i.e., Cancer insularis. 

 Hab. Littus orientale Nipponense {Mus. Brit.). 



c 



