NOTE Haynes Stage-I zoeae of laboratory-hatched Lopholithodes mandtii 



381 



Figure 1 



(F) maxillule, ventral; (G) maxilla, dorsal; (H) maxilliped 1, lateral; (I) maxilliped 2, lateral 

 (J) maxilliped 3, lateral; (K) pereopods 1-5, lateral; (L) abdomen and telson, dorsal. 



spination of the abdomen and tel- 

 son. Individuals of the latter spe- 

 cies are noticeably more rugose; 

 the carapace is more heavily 

 ridged and the rostrum is deeper 

 than in Stage-I L. mandtii. In 

 Stage-I P. wosnessenskii the ab- 

 dominal spines are relatively 

 long (those of abdominal somite 

 2 are one-half the length of ab- 

 dominal somite 3), wide, and 

 blunt, whereas in Stage-I L. 

 mandtii the abdominal spines 

 are short (those of somite 2 about 

 one-third the length of somite 3), 

 narrow, and pointed. Also, the 

 telson of P. wosnessenskii has 7+7 

 terminal processes whereas the 

 telson of L. mandtii has 8+8 ter- 

 minal processes. 



Citations 



Comparing Stage-I L. mandtii with published de- 

 scriptions of Stage-I lithodid larvae of the northern 

 North Pacific, they are most similar to Stage-I 

 Paralithodes camtsehaticus, P. platypus, and 

 Plaeetron wosnessenskii. These four species are char- 

 acterized by a relatively long, pointed rostrum and 

 by relatively long posterolateral spines on the cara- 

 pace (Sato 1958, Kurata 1964, Makarov 1967, Haynes 

 1984). 



Stage I of L. mandtii can be distinguished from 

 Paralithodes camtsehaticus and P. platypus by the 

 shape of the posterolateral spines on the carapace and 

 on somite 5 of the abdomen. In L. mandtii, the pos- 

 terolateral spines on the carapace are slightly longer 

 and have more outward curvature, and the posterolat- 

 eral spines on somite 5 are longer and more sinuous 

 than in P. camtsehaticus or P. platypus. Also, Stage-I 

 P. camtsehaticus has fewer plumose setae on the an- 

 tennal scale than Stage-I L. mandtii (5 vs. 9), and 

 Stage-I P. platypus has 9+9 telsonal processes rather 

 than 8+8. 



Stage-I L. mandtii can be distinguished from Stage-I 

 Plaeetron wosnessenskii by general appearance and 



Haynes, E. B. 



1984 Early zoeal stages of 

 Plaeetron wosnessenskii and 

 Rhinolithodes wosnessenskii 

 (Decapoda, Anomura, Litho- 

 didae) and review of lithodid 

 larvae of the northern North 

 Pacific Ocean. Fish. Bull., U.S. 

 82:315-324. 

 Konishi, K. 



1986 Larval development of the stone crab, Hapalogaster 

 dentata (De Haan, 1984) (Crustacea: Anomura: 

 Lithodidae) reared in the laboratory. J. Fac. Sci. 

 Hokkaido Univ. 24:155-172. 

 Kurata, H. 



1964 Larvae of decapod Crustacea of Hokkaido. 

 6. Lithodidae (Anomura). Bull. Hokkaido Reg. Fish. 

 Res. Lab. 29:49-65 [in Jpn., Engl. summ.]. 

 Makarov, R.R. 



1967 Larvae of the shrimps and crabs of the West 

 Kamchatkan Shelf and their distribution (Lichinki 

 krevetov, rakov-otshel'nikov i krabov zapadnokam- 

 chatskogo shel'fa i ikh reprendelenie). Transl. Natl. 

 Lending Library Sci. Technol., Boston Spa, Yorkshire, 

 England, 199 p. 

 Sato, S. 



1958 Studies on larval development and fishery biology 

 of king crab, Paralithodes camtsehatica (Tilesius). Bull. 

 Hokkaido Reg. Fish. Res. Lab. 17:1-102 [in Jpn., Engl, 

 summ.]. 



