Ancistrocheirus

{{Short description|Genus of squids}}

{{Speciesbox

| name = Sharpear enope squid

| image = Ancistrocheirus lesueurii.jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{Cite iucn | author = Allcock, L. | author2 = Barratt, I. | name-list-style=amp| title = Ancistrocheirus lesueuri | volume = 2014 | page = e.T163050A966613 | date = 2014 | doi = 10.2305/IUCN.UK.2014-1.RLTS.T163050A966613.en }}

| grandparent_authority = Pfeffer, 1912

| genus = Ancistrocheirus

| parent_authority = Gray, 1849

| display_parents = 3

| species = lesueurii

| authority = (D'Orbigny, 1842){{cite web | url = http://www.marinespecies.org/aphia.php?p=taxdetails&id=138747 | title = Ancistrocheirus lesueurii (d'Orbigny [in Férussac & d'Orbigny], 1842) | accessdate = 24 February 2018 | publisher = Flanders Marine Institute | author = Julian Finn | year = 2016 | work = World Register of Marine Species}}

| synonyms = *Abralia megalops Verrill, 1882

• Ancistroteuthis lesueurii (d'Orbigny, 1842)
• Enoploteuthis lesueurii d'Orbigny, 1842
• Enoploteuthis pallida Pfeffer, 1884
• Enoploteuthis polyonyx Troschel, 1857
• Loligo alessandrinii Vérany, 1847
• Onychia caribaea Steenstrup, 1880
• Onychoteuthis lesueurii Férussac, 1835
• Thelidioteuthis alessandrinii (Vérany, 1847)
• Ancistrocheirus alessandrinii (Verany, 1851){{cite magazine |magazine=VELIGER |publisher=California Malacozoological Society, Inc. |url=https://www.biodiversitylibrary.org/page/42467207 |location=Berkeley, California |volume=35 |date=1 April 1992 |title=On the Validity, Authorship, and Publication Date of the Specific Name Ancistrocheirus lesueurii (Cephalopoda: Ancistrocheiridae) |author=Giambattista Bello |page=142 |via=Biodiversity Heritage Library |quote=Ancistrocheirus alessandrinii (Verany, 1851)" and "Ancistrocheirus lesueri Ferussac & d'Orbigny, 1839" accepted by NESIS (1978:448; 1987:181) are herein considered to be synonymous.}}

| synonyms_ref =

}}

Ancistrocheirus lesueurii, the sharpear enope squid, is the only species in the genus Ancistrocheirus and family Ancistrocheiridae. With a mantle length of {{convert|25|cm|abbr=on}}, this moderately sized squid may be found throughout the tropical and subtropical oceans. They tend to be found at mesopelagic depths ({{convert|200-1000|m|abbr=on}} down).

Although only one species is recognized, some have suggested more than one species may exist due to differences in the paralarval morphology. Paralarva is the first free-living stage for cephalopods.