Acromegalomma, Gil & Nishi, 2017

publication ID	https://doi.org/10.11646/zootaxa.5620.1.4
publication LSID	lsid:zoobank.org:pub:FA7AB0CC-0AD8-42DD-8E50-9DC36865976C
DOI	https://doi.org/10.5281/zenodo.15268800
persistent identifier	https://treatment.plazi.org/id/1B7387D9-FFE2-DA7E-FF5E-93916B9BFBCE
treatment provided by	Plazi
scientific name	Acromegalomma
status

Key to Acromegalomma View in CoL species described from Western Atlantic Ocean

1A. Collar dorsal margins not fused to faecal groove............................................................ .. 2

1B. Collar dorsal margins fused to faecal groove................................................................ 5

2A. Subdistal compound eyes only on dorsalmost pair of radioles.................................................. 3

2B. Subdistal compound eyes on most radioles, absent only in ventralmost............................................................................................... A. georgiense (Tovar-Hernández & Carrera-Parra, 2011) View in CoL

3A. Ventral basal flanges absent............................................................................. 4

3B. Ventral basal flanges present............................................................. A. punctum sp. nov.

4A. All radioles with short tips....................................................... A. bioculatum ( Ehlers, 1887) View in CoL

4B. Dorsalmost radioles with long tips decreasing ventralwards................................................................................................. A. schwindtae Tovar-Hernández, de León-González & Bybee, 2017 View in CoL

5A. Interramal eyespots absent............................................................................. .. 6

5B. Interramal eyespots present....................................................... A. lobiferum ( Ehlers, 1887) View in CoL

6A. Ventral sacs present................................................................................... 7

6B. Ventral sacs absent.............................................................. A. heterops ( Perkins, 1984) View in CoL

7A. Inferior thoracic notochaetae Type C..................................................................... .. 8

7B. Inferior thoracic notochaetae Type A..................................................................... 10

8A. Caruncle present...................................................................................... 9

8B. Caruncle absent........................................... A. fauchaldi ( Giangrande, Licciano & Gambi, 2007) View in CoL

9A. Anterior peristomial ring exposed dorsally and laterally........................................ A. omenae sp. nov.

9B. Anterior peristomial not exposed........................................................ A. scutolenis sp. nov.

10A. Thoracic ventral shields entire............................. A. perkinsi ( Tovar-Hernández & Salazar-Vallejo, 2006) View in CoL

10B Thoracic ventral shields divided in two......................................................... A. josei sp nov.