WIGLEV and BURNS: DISTRIBUTION AND BIOLOGY OF MYSIDS 



collection are unknown. It was especially in- 

 teresting to find two species in the same grab 

 sample (Campbell sampler or Smith-Mclntyre 

 sampler), for example, Bowmanielki portoricen- 

 sis with Anchialina typira or Mysidopsis furca. 

 This is good evidence that within an area of 

 0.48 m- of sea bottom B. }fortoricensis lives with 

 A. typica or M. furca. Also, Neoinysis ameri- 

 cona and Mysidopsis bigelowi were caught in the 

 same grab (Smith-Mclntyre sampler) samples, 

 but in this case both species were taken from an 

 area of bottom only 0.1 m-. These examples, of 

 course, do not mean that these species are com- 

 petitors. They are strong indicators, however, 

 of close habitation and possible competition for 

 space or other living requirements. 



Table 14. — A list of co-occurring species. Species in 

 column B were present in one or more samples with the 

 corresponding species listed in column A. 



Bowmaniella portoricensis 



.Inchialina typica 

 ErytkTops frythrophthalma 



Pseudomma afjine 



Pfeudomma sp. 

 Amblyops abbreviata 

 .\fysidopsis bigelowi 



Meterytkrops rohusta 

 Hypenrythrops carihbaea 



Myjidopsis furca 

 Myiis mixta 



.Xtysis stenoUpis 

 Praunus flcxuosus 

 Neomysii amfrtcana 



hieteromysii jorn. 



Anchialina typica 

 Mysidopsis juna 



BotvmanieUa portoricensis 



ifypererythrops caribhaea 

 Pseudomma afjine 

 Pseudomma sp. 

 Mysidopsis bigelowi 

 Mysis mixta 

 \'fomysis americatia 

 lleteromysis formosa 



Erylkrops erythrophthalma 

 flypererytlirops caribbaea 

 Amblyops abbreviata 



Erythrops erythrophthalma 



Pseudomma affinf 



Erythrops cTythrophthatma 

 llypererylhrops caribbaea 

 A'eomysis americana 



Mysis mixta 



Erythrops erythrophthalma 

 Pseudomma affine 



BotvmanieUa portoricensis 



Erythrops erythrophthalma 

 Meterylhrops robusta 

 Neomysis americana 



Praunus flexuosus 



Mysis stenolepis 



Erythrops erythrophthalma 

 Hypererythrops caribbaea 

 Mysidopsis bigelowi 

 Mysis mixta 



Erythrops erythrophthalma 



ACKNOWLEDGMENTS 



We thank our associates and former associ- 

 ates, particularly Gilbert L. Chase, Jr., Harriett 

 E. Murray, Evan B. Haynes, Thomas L. Morris, 

 Ruth R. Stoddard, and Rober B. Theroux, and 

 other staff members of the NMFS Biological 

 Laboratory, Woods Hole, for assistance in col- 

 lecting: and processing samples; members of 

 the scientific staff at the Woods Hole Oceano- 

 graphic Institution and U.S. Geological Survey, 

 Woods Hole, for assistance in collecting samples; 

 crewmen aboard the research vessels; and Prof. 

 Arthur G. Humes, Boston University, Boston, 

 Mass., who read the manuscript and provided 

 helpful comments. 



LITERATURE CITED 



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Banner, A. H. 



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