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Kaston, B. J. (1946). North American spiders of the genus Ctenium. American Museum Novitates 1306: 1-19.
| Taxon | |
|---|---|
| Robertus banksi (Kaston, 1946) (Theridiidae) | 5, f. 1-8, 49 (Dmf), Ctenium banksi Original description |
| Robertus borealis (Kaston, 1946) (Theridiidae) | 6, f. 41-43, 50 (Dmf), Ctenium borealis Original description |
| Robertus crosbyi (Kaston, 1946) (Theridiidae) | 7, f. 52 (Df), Ctenium crosbyi Original description |
| Robertus eremophilus Chamberlin, 1928 (Theridiidae) | 7, f. 26-28, 54 (f, Dm), Ctenium eremophilus |
| Robertus floridensis (Kaston, 1946) (Theridiidae) | 7, f. 48 (Df), Ctenium floridensis Original description |
| Robertus frontatus (Banks, 1892) (Theridiidae) | 7, f. 35-37, 51, (mf, T from Microneta, S of Robertus terrestris), Ctenium frontata |
| Robertus fuscus (Emerton, 1894) (Theridiidae) | 8, f. 38-40, 56, (mf, T from Robertus), Ctenium fusca |
| Robertus laticeps (Keyserling, 1884) (Theridiidae) | 9, f. 14-16, 46, (mf, S of Robertus laticeps), Ctenium laticeps |
| Robertus lividus (Blackwall, 1836) (Theridiidae) | 9, f. 17-19, 58 (mf), Ctenium livida |
| Robertus longipalpus (Kaston, 1946) (Theridiidae) | 10, f. 20-22, 47 (Dmf), Ctenium longipalpus Original description |
| Robertus pumilus (Emerton, 1909) (Theridiidae) | 10, f. 32-34, 53 (mf), Ctenium pumilus |
| Robertus riparius (Keyserling, 1886) (Theridiidae) | 11, f. 11-13, 44 (mf), Ctenium riparius |
| Robertus similis (Kaston, 1946) (Theridiidae) | 12, f. 45 (Df), Ctenium similis Original description |
| Robertus spinifer (Emerton, 1909) (Theridiidae) | 12, f. 23-25, 57 (mf), Ctenium spiniferus |
| Robertus vigerens (Chamberlin & Ivie, 1933) (Theridiidae) | 13, f. 9-10, 29-31, 55 (mf), Ctenium vigerens |
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