Typhlotanaidae, Sieg, 1976

Błażewicz-Paszkowycz, Magdalena, 2007, Figure 6. Typhlotanais Compactus, Female A In Family Nototanaidae Sieg, 1976 And Typhlotanaidae Sieg, 1984, Zootaxa 1598, pp. 1-141 : 25

publication ID

https://doi.org/ 10.5281/zenodo.178692

publication LSID

lsid:zoobank.org:pub:7604A52C-F935-459C-91DD-F7C7AD9F2CC6

persistent identifier

https://treatment.plazi.org/id/03BAA970-6A2C-F508-FF06-FF148FFCF845

treatment provided by

Felipe

scientific name

Typhlotanaidae
status

 

Key for Typhlotanaidae View in CoL genera and morpho-groups

1. Body short, five or less times as long as wide ( Fig. 11A View FIGURE 11 )............................................................................2

- Body long, six or more times as long as wide ( Fig. 11 View FIGURE 11 A’)............................................................................8

2. Antennule twice as long as carapace ( Fig. 11B View FIGURE 11 ) ............................................................................................ ..................................................‘ eximus View in CoL ’ group ( T. penicillatus View in CoL , Typhlotanais sp. A , T. eximus View in CoL , T spinipes View in CoL )

- Antennule about as long as carapace ( Fig. 11 View FIGURE 11 B’)........................................................................................3

3. Pereopods 4–6 dactylus and unguis fused and modified to hook ( Fig. 11I View FIGURE 11 ).......................... Typhlotanoides View in CoL

- Pereopods 4–6 dactylus not fused with unguis, both normally developed ( Fig. 11 View FIGURE 11 I’)................................4

4. Pereopods 4–6 with specialized hooks on carpus ( Fig. 11C View FIGURE 11 ) ..................................................... Obesutanais View in CoL

- Pereopods 4–6 with prickly tubercles on carpus ( Figs 11D View FIGURE 11 , D’) ................................................................ 5

5. Pereopods 4–5 unguis bifurcated ( Fig. 11 View FIGURE 11 D’), propodus distal seta longer than dactylus unguis combined ( Fig. 11 View FIGURE 11 D’) ...... ‘ cornutus View in CoL ’ group ( T. cornutus View in CoL , T. crassus View in CoL , T. andeepae View in CoL n. sp., T. adipatus sensu Tzareva View in CoL )

- Pereopods 4–5 unguis simple ( Fig. 11D View FIGURE 11 ), propodus distal seta shorter than dactylus ( Fig. 11D View FIGURE 11 )................6

6. Uropod exopod 2-articled ............................................................................................................. T. grahami

- Uropod exopod 1-articled.............................................................................................................................7

7. Uropod exopod minute, less than half endopod length ................................................................... T. parvus

- Uropod exopod longer than half endopod length ....................................................... Larsenotanais View in CoL n. gen.

8. Pereonites 1–3 corrugated ( Fig. 11E View FIGURE 11 ) ............... ‘ plicatus View in CoL ’ group ( T. plicatus View in CoL , T. longimanus View in CoL , T. variabilis View in CoL )

- Pereonites 1–3 smooth (not corrugated).......................................................................................................9

9. Uropod exopod equal or subequal to endopod ( Fig. 11F View FIGURE 11 ); pereonites 2–5 semi-annulated proximally and distally ( Fig. 11G View FIGURE 11 ) ................................................................................................................ Peraeospinosus View in CoL

- Uropod exopod shorter than endopod ( Fig. 11H View FIGURE 11 ); pereonites 2–5 smooth (without rings)........................10

10. Pleotelson distal projection with two strong spiniform setae ( Fig. 11J View FIGURE 11 ) ........................................................ ............................................................................... ‘ spinicauda View in CoL ’ group ( T. spinicauda View in CoL , T. squamiger View in CoL n. sp.)

- Pleotelson distal projection without strong setae ( Fig. 11H View FIGURE 11 )......................................................................11

11. Pereopod coxa 1–3 with spur ( Fig. 11K View FIGURE 11 )................................................................................................... 12

- Pereopod coxa 1–3 without spur ( Figs 11L View FIGURE 11 ).............................................................................................. 13

12. Pereonite-1 with long setae dorsodistally ( Fig. 12A View FIGURE 12 ) ......................................................... T. mimosis View in CoL n. sp.

- Pereonite-1 without long setae dorsodistally... ‘ greenwichensis View in CoL ’ group ( T. messinensis View in CoL , T. greenwichensis View in CoL )

13. Pereopods 1–3 ischium with long seta ( Fig. 11M View FIGURE 11 ); antenna article-2 and 3 with ventral hooks ( Fig. 11 View FIGURE 11 N’). ....................................................................................... ‘ trispinosus ’ group ( T. trispinosus , T. tenuicornis )

- Pereopod-1-3 ischium with short seta ( Figs 11K, L View FIGURE 11 ); antenna article-2 and 3 without teeth ( Fig. 11N View FIGURE 11 )...14

14. Pereopods 4–6 carpus with specialized hooks ( Fig 12B View FIGURE 12 ) ............................................... Hamatipeda n. gen.

- Pereopod 4–6 carpus with prickly tubercles ( Fig. 12G–I View FIGURE 12 )..........................................................................15

15. Pereonite-1 almost as long as carapace ( Fig. 12D View FIGURE 12 ) .......................................................... Pulcherella View in CoL n. gen.

- Pereonite-1 clearly shorter than carapace ( Figs 12C, E View FIGURE 12 )............................................................................16

16. Antennule over twice as long as carapace ( Fig. 12 C View FIGURE 12 ); prickly tubercles on pereopods 4–6 minute ( Fig. 12J View FIGURE 12 ) .................................................................................................................................... Typhlamia View in CoL n. gen.

- Antennule shorter than double length of carapace ( Figs 12D, E, K View FIGURE 12 )..........................................................17

17. Prickly tubercles on pereopods 4–6 surrounded by spines ( Figs 12G View FIGURE 12 , G’) ........................ Torquella View in CoL n. gen.

- Prickly tubercles on pereopods 4–6 simple, not surrounded by spines ( Figs 12 H–J View FIGURE 12 )...............................18

18. Large gap between cheliped bases and pereonite-1 ventrally ( Fig. 12L View FIGURE 12 ) ...................................................... ................................................................................................. ’ mixtus View in CoL ’ group ( T. mixtus View in CoL , T. mimosis View in CoL n. sp.)

- Small (or no) gap between cheliped basis and pereonite-1 ventrally ( Figs 12 K View FIGURE 12 , L’)...............................19

19. A few setae on pereopod-1 basis and carpus dorsal edge ( Fig. 12M View FIGURE 12 ) ............................................................ .......................................................................................................... T. aequiremis View in CoL ( Typhlotanais sensu str .)

- No setae on pereopod-1 basis and carpus dorsal edge ( Fig. 12 View FIGURE 12 M’) .......................... Typhlotanais sensu lato

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