Revision of Dadagulella gen. nov., the “ Gulella radius group ” (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies
Author
Rowson, Ben
05D46259-DA45-45A4-9127-5AF361D566A7
Biodiversity & Systematic Biology, National Museum of Wales, Cathays Park, Cardiff, UK CF 10 3 NP.
ben.rowson@museumwales.ac.uk
Author
Tattersfield, Peter
8C55642E-B18A-461B-9BF9-31CB6DB7A070
Biodiversity & Systematic Biology, National Museum of Wales, Cathays Park, Cardiff, UK CF 10 3 NP.
text
European Journal of Taxonomy
2013
2013-02-04
37
37
1
46
journal article
10.5852/ejt.2013.37
9682b45b-5e22-4965-a293-e203660e0ed3
2118-9773
3806770
ADF6394E-77B5-4309-87FE-4097FDE0A3FD
Table 1. Measurements and dentition scores for adult shells of Dadagulella gen. nov. species and subspecies. Ranges are given with the mean (for measurements) or mode (for tooth counts) in brackets when n (number of shells measured) was greater than 2. Scores and measurements mentioned in the Table were taken either from all available adult material or from literature.| Taxon | n | | Size and shape | | Sculpture | Number of teeth |
|---|
| H (mm) | W (mm) Wh | Spire angle (°) | Ribs / mm | Parietal | Palatal | Basal Columellar | Total |
|---|
| radius radius | 44 | 2.8-4.6 (3.6) | 1.6-2.4 (1.9) | 6.0-7.0 (6.5) | 55-70 (62) | 7-16 (12) | 1 | 1 | 1 2-4 (2) | 5-7 (5) |
|---|
| r. calva | 7 | 4.0-4.6 (4.4) | 2.1-2.5 (2.3) | 6.5-8.0 (7.0) | 49-62 (57) | 5-10 (7) | 1 | 1 | 1 1-2 (2) | 4-5 (5) |
|---|
| browni browni | 17 | 2.6-3.3 (2.9) | 1.6-1.9 (1.8) | 5.5-6.0 (5.5) | 66-76 (70) | 11-15 (13) | 1-2 (2) | 1 | 1-2 (2) 2-3 (3) | 6-8 (8) |
|---|
| b. mafiensis | 1 | 3.3 | 1.8 | 6.0 | 65 | 12 | 2 | 1 | 1 1 | 5 |
|---|
| b. semulikiensis | 2 | 3.2-3.3 | 1.9 | 6.0-6.5 | 67 | 12 | 2 | 1 | 2 3 | 8 |
|---|
| delgada | 2 | 3.8-4.0 | 1.8 | 6.5-7.5 | 43-49 | 7 | 1 | 1 | 1 2 | 5 |
|---|
| ecclesiola | 15 | 3.2-3.7 (3.4) | 1.8-1.9 (1.8) | 5.5-7.0 (6.5) | 53-65 (60) | 8-14 (10) | 1 | 1 | 1 (hidden) 1 | 4 |
|---|
| cresswelli | 1 | 3.7 | 1.8 | 7.0 | 52 | 13 | 1 | 1 | 0 3 | 5 |
|---|
| minareta | 18 | 3.4-4.0 (3.6) | 1.8-2.0 (1.9) | 6.0-7.0 (6.5) | 48-63 (55) | 10-13 (11) | 1-2 (1) | 1 | 0-1 (0) 2-3 (2) | 5-7 (5) |
|---|
| cuspidata | 3 | 4.3-4.8 (4.6) | 2.4-2.5 (2.5) | 7.75 | 58 | 8 | 1 | 2 | 1 2 | 6 |
|---|
| pembensis | 11 | 4.8-5.5 (5.1) | 2.0-2.5 (2.4) | 6.5-7.5 (7.0) | 51- 65 (57) | 12-15 (13) | 1 | 1 | 1 3 | 6 |
|---|
| nictitans | 9 | 3.6-3.9 (3.8) | 2.0-2.2 (2.1) | 5.5 | 64-69 (67) | 13-15 (14) | 1 | 1 | 1 (hidden) 2-3 (3) | 5-6 (6) |
|---|
| frontierarum | 5 | 3.1-3.4 (3.3) | 1.8-2.0 (1.9) | 4.5-5.0 (4.75) | 68-77 (73) | 5-7 (6) | 1 | 3 | 1 1 | 6 |
|---|
| delta | 2 | 4.2-4.3 | 2.1-2.4 | 6.5 | 56-66 | 12-13 | 1 | 1 | 0 1 | 3 |
|---|
| selene | 2 | 3.6-3.7 | 2.1-2.2 | 6.0-6.25 | 70 | 16 | 1 | 1 | 1 2 | 5 |
|---|
| meredithae | 23 | 2.3-3.1 (2.6) | 1.4-1.6 (1.5) | 5.25-5.75 (5.5) | 58-77 (71) | 27 | 1 | 1 | 0 1-2 (2) | 3-4 (3) |
|---|
| minuscula minuscula | 2 | 3.0-4.1 | 1.9-2.0 | 6.5-7.0 | 48- 63 | 10-13 | 1 | 1 | 1 1-2 | 4-5 |
|---|
| minuscula mahorana | 7 | 4.3-4.6 (4.4) | 1.9-2.2 (2.0) | 6.5-7.5 (7.0) | 50-57 (53) | 15-23 (18) | 1 | 1 | 1 3 | 6 |
|---|
| rondoensis | 1 | 4.1 | 2.2 | 6.25 | 53 | 12 | 1 | 1 | 0 1 | 3 |
|---|
| conoidea | 1 | 5.5 | 2.8 | 8 | 48 | 9 | 1 | 1 | 0 1 | 3 |
|---|
| Overall values | 173 | 2.3-5.5 (3.7) | 1.4-2.8 (2.0) | 4.5-8 (6.5) | 43-77 (60) | 5-27 (12) | 1-2 (1) | 1-3 (1) | 0-2 (1) 1-4 (3) | 3-8 (5) |
|---|