Aeger tipularius
Description
Aeger tipularius (Schlotheim, 1822) (Fig. 1 A-C)
DIAGNOSIS (from Schweigert et al. 2016). — Very short smooth rostrum; Mxp3 extremely long, with movable spines; chelate P1-P3; P1-P2 bearing long movable spines; P3 with spiny chelae; achelate P4-P5 and spineless; P3 slightly larger than P1-P2; well-developed pleopods; uropodal exopod with rounded diaresis.
STUDIED MATERIAL. — Charbonnier & Garassino (2012) listed seven specimens. Careful examination leads us to re-identify some of them. Three specimens, MNHN.F.A33509 (Solnhofen), B13443 (Eichstätt), MNHN.GG.2004/8072 (unknown locality), are maintained as A. tipularius, while four others are attributed to Aeger spinipes (Desmarest, 1817), A. insignis (Oppel, 1862), and Acanthochirana cordata (Münster, 1839).
COMMENTS
Our assignation is based on the very short and smooth rostrum. The carapace groove pattern typical of Aeger – with a cervical groove steeply inclined, not joined to the dorsal margin but joined to the antennal groove; an oblique and sinuous branchiocardiac groove crossing all the carapace from the posterior margin to the hepatic region; and a hepatic groove joined anteriorly to the cervical groove and posteriorly to the branchiocardiac groove (see diagnosis in Charbonnier et al. 2017: 36) – is particularly visible on specimen A33509 (Fig. 1A, B).
Notes
Files
Files
(1.8 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:68e1c78953017fe2819cdc85e8a6322b
|
1.8 kB | Download |
System files
(12.6 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:41e859219fbb117dd8be0fd41be51fc5
|
12.6 kB | Download |
Linked records
Additional details
Identifiers
Biodiversity
- Family
- Aegeridae
- Genus
- Aeger
- Kingdom
- Animalia
- Order
- Decapoda
- Phylum
- Arthropoda
- Scientific name authorship
- Schlotheim
- Species
- tipularius
- Taxon rank
- species
- Taxonomic concept label
- Aeger tipularius (Schlotheim, 1822) sec. Odin, Charbonnier, Devillez & Schweigert, 2019
References
- SCHLOTHEIM E. F. VON 1822. - Beitrage zur naheren Bestimmung der versteinerten und fossilen Krebsarten. Nachtrage zur Petrefaktenkunde, Becker, Gotha: 17 - 37.
- SCHWEIGERT G., GARASSINO A. & PASINI G. 2016. - The Upper Jurassic Solnhofen decapod crustacean fauna: Review of the types from old descriptions. Part II. Superfamily Penaeoidea and infraorder Caridea. Memorie della Societa Italiana di Scienze Naturali e del Museo Civico di Storia Natural di Milano 49: 3 - 26.
- CHARBONNIER S. & GARASSINO A. 2012. - The marine arthropods from the Solnhofen Lithographic Limestones (Late Jurassic, Germany) in the collections of the Museum national d'Histoire naturelle, Paris. Geodiversitas 34 (4): 857 - 872. https: // doi. org / 10.5252 / g 2012 n 4 a 8
- DESMAREST A. - G. 1817. - Crustaces fossiles, in Societe de Naturalistes et d'Agriculteurs (ed.), Nouveau Dictionnaire d'Histoire naturelle, appliquee aux Arts, a l'Agriculture, a l'Economie rurale et domestique, a la Medecine, etc. Tome 8 [COR-CUN]. Deterville, Paris: 495 - 519. https: // biodiversitylibrary. org / page / 18035624
- OPPEL A. 1862. - Ueber jurassische Crustaceen (Decapoda macrura). Palaeontologische Mittheilungen aus dem Museum des koeniglich Bayerischen Staates 1: 1 - 120.
- MUNSTER G. G. ZU 1839. - Decapoda Macroura, Abbildung und Beschreibung der fossilen langschwanzigen Krebse in den Kalkschiefern von Bayern. Commission der Buchner'schen Buchhandlung, Bayreuth: 1 - 88. https: // doi. org / 10.5962 / bhl. title. 120022
- CHARBONNIER S., AUDO D., GARASSINO A. & HYZNY M. 2017. - Fossil Crustacea of Lebanon. Museum national d'Histoire naturelle, Paris, 252 p. (Memoires du Museum national d'Histoire naturelle, vol. 210).