NO. 9 



MARINE INVERTEBRATES, ALASKA — MacGINITIE 



45 



Table 4. — Data on eggs and breeding 



Date 



Animal 

 Crustaceans — continued 

 Isopods — continued 

 Idotaega entomon — continued 



seasons — continued 



Remarks 



/. sabini 



Synidotea bicuspida 

 Idarcturns miirdochi 

 Phryxiis abdominalis 

 Amphipods 

 Hyperia medusarum 



Themis to libellula 



Anonyx nugax 



Paronesimus barentsi 



Onisimus nonnani 

 O. affinis 



Orchonienella pinguis 

 Socarnes bidenticulatus 



9- 2-, 



7-20-49 



9- 8-49 

 10- 2-49 



10-28-49 



7-13-50 



8- 6-48 



8-10-48 

 9-26-49 

 9-30-49 



10-11-49 



9- 9-48 

 10- 6-49 



7-20-49 

 10- s-49 

 3-20-50 

 7-19-50 

 7-21 -SO 



9-12-49 



8- 8-49 

 9-22-49 



8-21-49 

 10- 5-49 



9- 8-48 

 8-17-49 

 9-26-49 

 1-27-50 



10-11-49 



10-14-49 



48 15 with marsupiums, 2 with 



eggs (early stages), i 

 just lost brood 

 I with freshly deposited 

 eggs, 2 with young em- 

 bryos, I with young 

 I with eggs (early stages) 

 I with marsupium, i with 

 eggs (early stages), i 

 with embryos 



1 with freshly deposited 

 eggs 



2 with young 



I with young ready to be 

 released 



3 with marsupiums 

 I just lost brood 



I with freshly deposited 



eggs 

 I with young 

 I with eggs 



2 with eggs 

 Females with eggs 

 I with eggs 



5 " " 



13 with eggs; 72 with 

 developing marsupiums; 

 juveniles 



Many females molting. 

 Eggs visible through in- 

 tegument 



I with eggs 



Many freshly molted. 

 Eggs visible through in- 

 tegument 



I with young 



I with eggs (early stages) 



I " " 



I just lost brood 



I " " " 



I with eggs (late stages) 



I " " (medium early 

 stages) 



I with young embryos 



