Atyid, De Haan, 1844
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publication ID |
https://doi.org/10.3390/arthropoda1040015 |
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persistent identifier |
https://treatment.plazi.org/id/03B9116D-7413-F72A-FE22-B368FAC3F8EF |
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treatment provided by |
Diego |
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scientific name |
Atyid |
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1.1 First two pairs of pereiopods identical 2 ( Atya group)
1.2 First pair distinctly shorter than second 3
2.1 Carapace withanacuteprojection onthepterygostomian margin, Atyopsisspinipes rostrum with more than two teeth on the ventral margin
2.2 Carapacewithroundedpterygostomianmargin, rostrumwith Atyoidapilipes fewer than two teeth on the ventral margin
3.1 More than six post-orbital teeth situated on the dorsal margin of the rostrum. Along stylocerite, reaching at least to the 4 ( C. serratirostris group) beginning of the second segment of the antennular peduncle
3.2 Fewerthansixdorsalrostrumteethsituatedonthe carapace 5 behind the orbital margin. Along or short stylocerite
4.1 Rostrumwith 22–26 dorsalteethand P2 carpus 8.2–10.9 timesas Caridinaserratirostris long as it is wide
4.2 Rostrumwith 17–22 dorsalteethand P2 carpus 11.9–12.0 timesas C. celebensis long as it is wide.
5.1 Numberof spiniformsetaeontheuropodaldiaeresis 6–10 anda C. leptopoda sp. nov. very long and upcurved rostrum with 5–9 dorsal teeth, widely spaced
5.2 Numberof spiniformsetaeontheuropodaldiaeresis 8–22 anda 6 long or short rostrumwith 8–28 dorsal teeth, closely set
6.1 Uropodaldiaeresiswith 14–22 spinules, short rostrum, armedor 7 not, and high unarmed pre-anal carina
6.2 Uropodaldiaeresiswith 8–17 spinules, rostrumvariable inshape 13 and length, and low pre-anal carina with or without a spine
7.1 Telson with numerous and very long plumose intermediate setae 8 ( C. weberi group)
7.2 Telson with few long intermediate setae 11 ( C. typus group)
8.1 Rostrum without dorsal teeth Atydina atyoides
8.2 Teeth present on the dorsal margin of the rostrum 9
9.1 Rostrum straight, 9–17 teeth on the dorsal margin C. laoagensis
9.2 Rostrum bent downwards, 8–10 teeth on the dorsal margin 10
10.1 Outerterminalprojectionof uropodaldiaeresisshorterthanthe C. parvirostris first movable spine
10.2 Outerterminalprojectionof uropodaldiaeresislongerthanthe C. papuana first movable spine
11.1 Rostrum reaching to or longer than the antennular peduncle C. villadolidi
11.2 Rostrum shorter than the antennular peduncle 12
12.1 Rostrumreachingtheendof the secondsegmentof the C. typus antennular peduncle
12.2 Rostrumreachingtheendof the firstsegmentof the antennular C. zhujiangensis peduncle
13.1 Nosubapicalteethonthe rostrum, tipof therostrum rounded, 14 ( C. brevicarpalis group) and P1 carpus deeply excavated
13.2 Subapicalteeth oftenpresentontherostrumandtip of the 15 rostrum pointed P1 carpus not deeply excavated
14.1 Rostrum overreaching the scaphocerite C. endehensis
14.2 Rostrum reaching the end of the antennular peduncle C. brevicarpalis
15.1 Presence of oneor fewsubapicalteethonthe rostrum, fewer 16 ( C. nilotica group) than two post-orbital teeth
15.2 Nosubapicalteethonthe rostrum, morethanthreepost- C. bruneiana orbital teeth
16.1 Distinct projection on the pre-anal carina C. gracilipes
16.2 Absence of projection, sometimesthepresenceof acluster C. elongapoda of setae
3.3. Taxonomy: Updated Checklist of the Species of Atyid View in CoL Shrimps from Mindoro Island
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