Ceratothoa angulata ( Richardson, 1910 )
publication ID |
https://doi.org/ 10.11646/zootaxa.4622.1.1 |
publication LSID |
urn:lsid:zoobank.org:pub:4537BB46-452F-4E0C-A444-4AA5E12A64E7 |
DOI |
https://doi.org/10.5281/zenodo.8397522 |
persistent identifier |
https://treatment.plazi.org/id/E129637E-FF95-A453-FF47-FCFFFCE1FF2B |
treatment provided by |
Plazi |
scientific name |
Ceratothoa angulata ( Richardson, 1910 ) |
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Ceratothoa angulata ( Richardson, 1910) View in CoL
( Fig. 1 View FIGURE 1 g–i)
Meinertia angulata Richardson, 1910: 22 View in CoL , fig. 21 View FIGURE 21 .
Codonophilus angulatus View in CoL .— Nierstrasz, 1931: 132.
Ceratothoa angulata View in CoL .— Bruce & Bowman 1989: 2–4, figs 1, 2.— Trilles, 1994: 116.—Williams, Bunkley-Williams & Pitlik 2000: 157–158.—Paulay, Kropp, Ng & Eldredge, 2003: 479.— Rameshkumar, Ravichandran & Sivasubramanian, 2013: 99–105.— Hadfield, Bruce & Smit, 2016: 42–45, fig. 1.
Not Ceratothoa angulata View in CoL . — Ravichandran, Rameshkumar & Trilles, 2011: 232–234, fig. 1a. [ Glossobius auritus View in CoL ].
Type and type locality. The holotype female (21 mm TL; 8 mm W) Meinertia angulata , held at United States National Museum, USA ( USNM 41008) from Port San Pio, Philippines, near mouth of a small stream, host unknown, 11 Nov 1908 ( Richardson 1910).
Material examined. 2 ovig. females (25, 29 mm) ( CAS / MBRM C- 105– C- 106), June 2010, and 1 ovig. female (26 mm) ( ZSI / MBRC D1-534). All from Hyporhamphus dussumieri (Valenciennes, 1847) , Parangipettai, the Southeastern coast of India. coll. S. Ravichandran.
Remarks. Ceratothoa angulata can be identified by the truncate anterolateral margins of pereonite 1 which form distinct ridges on lateral sides and two small medial depressions, the slightly emarginate and truncate pleotelson, and the broadly rounded uropodal exopod.
Richardson’s (1910) description was based on a single specimen, a female from an unidentified host in the Philippines, and consisted of a short description with a single figure. Bruce & Bowman (1989) provided a redescription based on the holotype (with only two figures) and additional material from Borneo (a non ovig. female and male), including a short description of the male and figures for both specimens. The holotype (USNM 41008) was recently redescribed and detail figured by Hadfield et al. (2016). Ceratothoa angulata resembles Ceratothoa guttata ( Richardson, 1910) with the narrow pleon and pleotelson but the unique pereonite 1 makes it readily distinguishable from other species.
Ravichandran et al. (2011) reported Ceratothoa angulata ( Richardson, 1910) from the host Hyporhamphus dussumieri (Valenciennes, 1847) is a misidentification and refers to Glossobius auritus Bovallius, 1885 : other characters are discussed under Remarks for G. auritus to which this species is similar.
Colour. Ivory white to pale brown in alcohol.
Size. Ovig. females (17.5– 29 mm), non ovig. females (18–26 mm); male (7 mm) ( Bruce & Bowman 1989; Williams et al. 2000).
Distribution. Ceratothoa angulata distributed from the western and central Indo–Pacific region: Philippines ( Richardson 1910), Indonesia ( Nierstrasz 1931; Bruce & Bowman 1989), Guam, Micronesia ( Williams et al. 2000) and India ( Rameshkumar et al. 2013).
Hosts. Known only from family Hemiramphidae : Dussumier’s halfbeak, Hyporhamphus dussumieri (previously H. laticeps ) ( Bruce & Bowman 1989; Williams et al. 2000).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Ceratothoa angulata ( Richardson, 1910 )
Ravichandran, S., Vigneshwaran, P. & Rameshkumar, G. 2019 |
Codonophilus angulatus
Nierstrasz 1931 |
Meinertia angulata
Richardson 1910: 22 |
Glossobius auritus
Bovallius 1885 |