Cryptopus monstrosa, Gray, 1828

Lira, Simone Maria De Albuquerque, Santana, Claudeilton Severino De, Lima, Cynthia Dayanne Mello De, Montes, Manuel De Jesus Flores & Schwamborn, Ralf, 2017, New records of the larval forms Cerataspis monstrosa and Amphionides reynaudii (Crustacea: Decapoda) from the western tropical Atlantic, Zootaxa 4237 (2), pp. 335-346 : 338-339

Cerataspis monstrosa ( Gray, 1828)

( Fig. 2 )

Cerataspis monstrosus Gray 1828: 8, pl. 6, figs. 5a, b.

Cryptopus Defrancii Latreille 1829: 100 .— Milne Edwards: 1837: 439. Cerataspis monstruosus Milne Edwards 1837: 438.— Gurney 1960: 83. Lepsia tuberculosa Quoy 1839 in Guerin-Meneville 1839 : pl. 1, 3–4.

Aristaeus armatus Bate 1881: 188 -189; 1888, 312–316, pl. 45–46, figs. 1–2. Cerataspis monstrosa Bonnier 1899: 27 –49, pl. 3–6.

Aristaeus (Aristaeopsis) armatus Alcock 1901: 41 .

Plesiopenaeus armatus Crosnier & Forest 1973: 294 –296, figs. 99, c–d.— Tavares & Serejo 2007: 33 –37, figs. 20–22.

Material examined. Brazil, Fernando de Noronha Archipelago, “ Camadas Finas I Project”, St FN-97, 03°46’46”S 032°21’57”W, 0–150 m, bongo net, 300-µm mesh size, 1 Mysis II ( MOUFPE 15.706 ).

Diagnosis for the larvae. Body with large sculptured carapace that surrounds most of the body, including part of the abdomen, post-orbital dorsal horns, pterygostomian ventral horns; short rostrum, ventrally bent without teeth. Large and stalked eyes. Lateral swellings on the carapace, both anterior and posterior dorsal organs and four pairs of dorsal tubercles. Short abdomen without spines; telson with three lateral spines and the six setae inside the furca on each lobe (modified from Heegaard 1966; Morgan et al. 1985).

Geographic distribution (larval form). western Mediterranean : Gibraltar; eastern North Atlantic: Azores ; eastern South Atlantic : Saint Helena, South Africa; western North Atlantic : North Carolina , Gulf of Mexico ; western Indian Ocean : South of Madagascar ; western North Pacific : South China Sea , South Japan , North of the Philippines ( Heegaard 1966; Morgan et al. 1985; Franks & Flowers 2008; Bracken-Grissom et al. 2012).

Geographic distribution (adult form, as Plesiopenaeus armatus ). eastern North Atlantic: Azores, Madeira, Canaries , Cape Verde; Central North Atlantic: Mid Atlantic Ridge ; western North Atlantic : Gulf of Mexico ; western South Atlantic : Brazil from Bahia and Espírito Santo states , Argentina; eastern Indian Ocean: Bay of Bengal ; central Indian Ocean: Maldives; western Indian Ocean : Zanzibar, Madagascar; western North Pacific Ocean: Japan , Philippines; Central North Pacific : Hawaii ; Central South Pacific : Wallis and Futuna Islands, Tuamotu; western South Pacific: Northeast of Australia ( Pérez Farfante & Kensley 1997; D'Incao 1998; Dall 2001; Tavares & Serejo 2007; Cardoso et al. 2014).

New record (larval form). Fernando de Noronha Archipelago.

Remarks. The only specimen in this study was caught with a bongo net (300 µm) off FN island during daylight. This is the first record of this larva in the oceanic waters of the south-western tropical Atlantic. The Mysis II found in the present study has 12.43 mm total length (TL); 5.85 mm carapace length (CL) ( Table 1 ) and a rostrum of 2.36 mm length; whereas the Mysis II in Heegaard (1966) showed TL= 12 mm, CL = 5 mm and rostrum= 2 mm. The specimen in this study is very similar, in morphology and dimensions, to the specimens described in Heegaard (1966).

Figures

FIGURE 2. Mysis-stage of Cerataspis monstrosa (Gray, 1828) larval form, sampled off Fernando de Noronha Archipelago, Brazil. Mysis II. Lateral view; Scale bar = 1 mm.