Table l.-Numbers of living mollusks by species and station collected from Hillsborough Bay, Fla.. August and September 



196S — Continued 

 [Number of times a station sampled in parentheses] 



Species 



Station numbers 



9-6 

 (2) 



9-7 

 (2) 



9-8 

 C2) 



(2) 



9-10 

 (2) 



10-14 

 (3) 



10-16 

 (2) 



10-16 

 (2) 



10-17 

 (2) 



10-18 

 (1) 



10-19 



(2) 



Mulin ia lateralis 



Amygdalum papyria '.\\ 



Nassanus libez. '."." 



Tagelus phbeiua "]' 



Melontjena corona /.'.'." 



MitTella lunata V.'.V.'.'.V. 



TdUna lersicolor ^"11" 



Ensis minor... '[^ 



Mercenaria campechiensis ] " 



Macoma tenia '..'.'.' 



Crepidula plana. '-'.'.'.'.'.'.'. 



Bittium tarium -.'.'.'..'.'.' 



Thracia sp '.'.'.'.'.'..'. 



Modiolus americanus .'.'.'.'. 



Anadara transiersa ',"'" 



Crassostrea lirginica 



Retusa canalictilata '.'.'..'.'.'. 



Polinices duplicatus I![ 



Odostomia acutidens. 



Mysella planulata 



Epitonium tiumphreysi ' 



CoTbula caribaea '.'.'.'.'. 



Anachis obesa. ..' 



Tagelas diiisus -'.'.'.'.'.'.' 



Vrosalpinxtampaensis.. 



Nucula proxima 



Nat ica pusilla __ __' 



LaeiicaTium morioni. "'']^ 



Haminoea siiccinea ., 



Epitonium angulatum '.'.'.... 



Crepidula fornicata 



Corbula barratiaiia_ 



Brachidontes erustus [, 



Polymesoda caroliniana 



.■Icteon punctostriatus "^ 



Isclinocltiton papillosus. ..... ... 



Total number species 



Total number individuals - 



10-20 

 (2) 



10-21 

 (2) 



10-22 

 (2) 



10-23 

 (2) 



21 

 21 

 9 

 12 .. 



"263" 



'""7'.. 



3 



10 



63 

 3 



10 

 ...... 



369 

 16 



3 



10 

 3 



1 .... 

 4 .... 

 1 



35 



41 



4 



300 



5 



7 



"i' 



2 



io "-'.'.'.'. 



3 



2 



"i'.'"".".' 



"i".'.'.'.'. 



"22" 



3 .... 

 3"."."."." 



4 .. 

 4 .. 



1 .. 



2 



1 



1 .... 

 1 .... 



30 

 "2 



1 

 10 



41 



1 . 



286 



17 

 612 



23 



12 



71 



10 



10 

 353 



Station numbers 



Species 



C 



(2) 



C-1 



(1) 



C-2 



(2) 



C-3 

 (2) 



C-4 

 (1) 



C-5 

 (2) 



C-6 



(2) 



C-7 

 (1) 



C-8 

 (1) 



C-8-1 

 (1) 



C-8-2 

 (1) 



C-9 



(1) 



Stations where 

 collected 



Percent- 

 Stations age of 

 stations 



1 

 10 



1 

 22 



80 



Mulinia lateralis ^._ j29 



Amygdalum papyria '.'.'.'..'. 26 



Nassarius vibex 



Tagelus plebeius 



Melongena corona... 



Mitrella lunata '.'-'.'.'.'.'.'. 



Tellina versicolor -...'.'.'.'. " 



Ensis minor. _ "1""^! c 



Mercenaria campeckiensis '" ' 



Macoma tenta _ ^ 



268 

 16 

 2 



16 

 4 



8 , 

 8 . 



Number Percent 



150 

 22 

 16 



Crepidula plana. 

 Bittium varium.. 

 Thracia sp. 



6 

 17 



Modiolu 



1 



17 



Hus amertcanus 



Anadara transversa ' ' " ' . 



Crassostrea virginica 2 2 " 



Retusa canaliculata "" "" 



Polinices duplicatus. l\\[l]\.[[\\[ 



Odostomia acutidens ' " 



Mysetta planulata l"[[[[\\"]"\ 1 ' 



Epitonium tiumphreysi .".'. " 



Corbula caribaea '.'.'.'.'.'. 



Anachis obesa '.'.'.'.'.'. " {'"" 



Tagelus divisus .-"[[[[]"]"' " " 



Urosalpinz tampaensis 



Nucula proxima ...... 



Natica pusilla '..'.'.'.'.". * 



Laevicardium jnortoni... l\[\\[[[[y.l][[[[\" "'" 



Haminoea succinea '"" X 



Epitonium angulatum '" 



Crepidula fornicata 



Corbula barrattiana V"^^^ 



Brachidontes exustus """" 



Polymesoda caroliniana "[[11]" [[["[[ l" 



Acteon punctostriatus lllllll" ]"]["" " 



Ischnochiton papillosus '.'.'.'.' ' 



15 



1 



Total number species 9 



Total number individuals ......... 192 



4 



25 



10 

 328 



150 



MOLLUSKS AND BENTHIC ENVIRONMENTS IN HILLSBOROUGH BAT, FLA. 



195 



