Doryphoribius evelinae (Marcus, 1928)

Pérez-Pech, Wilbert Andrés, Anguas-Escalante, Abril, Cutz-Pool, Leopoldo Querubin & Guidetti, Roberto, 2017, Doryphoribius chetumalensis sp. nov. (Eutardigrada: Isohypsibiidae) a new tardigrade species discovered in an unusual habitat of urban areas of Mexico, Zootaxa 4344 (2), pp. 345-356 : 353

The evelinae group:

4(2). Cuticular gibbosities present only on legs...................................................................5 -. Cuticular gibbosities present on dorsal side of the body........................................................6 5(4). Dorsal cuticle smooth.......................................................................... D. evelinae -. Dorsal cuticle with reticular design.................................................................. D. flavus 6(4). Cuticular gibbosities indistinct and irregularly arranged.......................................................7 -. Cuticular gibbosities distinct and arranged in defined transverse rows........................................... 8 7(6). Cuticular tubercles present, lunules absent, hind claws larger than claws I–III........................ D. maranguensis -. Cuticular tubercles absent, lunules present, hind claws slightly smaller than claws I–III..................... D. picoensis 8(6). Four dorsal gibbosities arranged in two caudal rows (configuration: II:2-2)....................... D. quadrituberculatus -. More than two rows of dorsal gibbosities.................................................................. 9 9(8) Three rows of dorsal gibbosities (III:4-2-2), oral cavity with six teeth in two bands....................... D. tessellatus -. More than three rows of dorsal gibbosities located throughout the dorsal cuticle...................................10 10(9). Seven rows of gibbosities with only two gibbosities in each row (VII:2-2-2-2-2-2-2)................. D. dupliglobulatus -. More than seven rows of gibbosities...................................................................... 11 11(10). Nine rows of gibbosities...............................................................................12 -. Ten rows of gibbosities (X: 2-3-1-3-1-3-1-2-2-2).................................................. D. mcinnesae 12(11). Six gibbosities in rows I and II, a single gibbosity on each of the hind legs, (IX:6-6-4-6-4-6-4-4-2+2[LIV])..... D. dawkinsi -. Less than six gibbosities (2 or 4) in row I, no gibbosities in the hind legs.........................................13 13(12). Two gibbosities in row I; gibbosity configuration IX: 2-4-4-4-4-6-4-4-2................................. D. barbarae -. More than two gibbosities in row I..................................................................... 14 14(13). Four gibbosities in row 2; gibbosity configuration IX:4-4-4-4-4-4-4-2-2.......................... D. huangguoshuensis -. Six gibbosities in row 2................................................................................ 15 15(14). Gibbosity configuration IX: 4-6-5-6-5-6-4-2-2..................................................... D. niedbalai -. Gibbosity configuration IX: 4-6-4-6-4-6-4-4-2..............................................................16 16(15). Main branches of both external and internal claws with uniform width and the distal portion tapering gradually...........

..................................................................................... D. maasaimarensis -. Proximal portion of the main branches of both external and internal claws more wide and tapered abruptly at about half length

.......................................................................................... D. zyxiglobus