Table 1

The freshwater gastropod species of North Carolina Atlantic drainages are listed in the left column below, ordered by their record total in our database, together with FWGNA incidence ranks.  The suffix "p" designates peripheral species.  This list is compared to the checklist of Dawley (1965) and the spurious review of Johnson and colleagues (2013), giving synonyms as necessary.

Confirmed in this study
Records
FWGNA
Dawley (1965)
Johnson et al. (2013)
Physa acuta
625
I-5 P. heterostropha Physella heterostropha
Ferrissia fragilis 576 I-5 F. fragilis F. fragilis
Campeloma decisum
555
I-5 C. decisum, C. geniculum, C. lewisii, C. rufrum C. decisum
C. limum
Menetus dilatatus
487
I-5 M. dilatatus, M. alabamensis Micromenetus dilatatus
Lymnaea columella 366 I-5 Pseudosuccinea columella P. columella
Helisoma anceps
306
I-5 H. anceps H. anceps
Laevapex fuscus
257
I-5 L. fuscus, L. diaphanus L. fuscus
Pleurocera proxima 257 I-5 Goniobasis proxima Elimia proxima
Goniobasis symmetrica Elimia symmetrica
Pleurocera catenaria catenaria
P. catenaria dislocata
(combined)
106
40
I-5 - Elimia catenaria
Goniobasis catenaria dislocata Elimia dislocata
Amnicola limosa 133 I-5 A. limosa A. limosus
Lyogyrus granum 105 I-5 L. granum, L. dalli L. granum
Leptoxis carinata
105
I-5 Nitocris carinata L. carinata
Helisoma trivolvis
92
I-5 - Planorbella trivolvis
Somatogyrus virginicus
49
I-4 S. virginicus S. virginicus
Lymnaea humilis
47
I-5 Fossaria modicella Galba humilis
G. obrussa
Planorbula armigera
38
I-4 - Planorbella armigera
Gillia altilis
34
I-4 G. altilis, G. crenata G. altilis
Pleurocera virginica 32 I-5 Goniobasis virginica Elimia virginica
Gyraulus parvus 32 I-5 - G. parvus
Physa carolinae
29
I-4 - P. carolinae
Lioplax subcarinata 26 I-4 L. subcarinata L. subcarinata
Promenetus exacuous
19
I-4 - Promenetus exacuous
Physa pomilia 19 I-4 P. pomilia Physella pomilia
- Physella hendersoni
Littoridinops tenuipes 18 I-4 - L. tenuipes
Lymnaea cubensis 13 I-4 - Galba cubensis
Ferrissia rivularis12I-5F. rivularisF. rivularis
Viviparus intertextus
8
I-4 - V. intertextus
Physa gyrina
7
I-4 P. inflata Physella gyrina
Valvata bicarinata
5
I-4 V. bicarinata V. bicarinata
Bellamya japonica
4
I-4 -  
Floridobia sp. (waccamaw) 4 I-2 -
 
Hebetancylus excentricus
3
I-3p - H. excentricus
Helisoma magnificum 3 I-2 H. magnificum Planorbella magnifica
Helisoma eucosmium
3
I-2 -  
Melanoides tuberculata1I-2p
Viviparus georgianus1I-4V. georgianus
Fontigens nickliniana 0 I-4 - F. nickliniana
Pomatiopsis lapidaria 0 I-3p - P. lapidaria
Pomacea paludosa 0 I-2p - P. paludosa
Gyraulus deflectus 0 I-3p - G. deflectus
  0     Planorbella duryi
  0     Probythinella emarginata
  0     Valvata sincera
TOTAL4,418


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