Detection of a population of Pseudosquillopsis cerisii (Roux, 1828) (Crustacea, Stomatopoda, Parasquillidae) in the northwestern Mediterranean

Abstract

Detection of a population of Pseudosquillopsis cerisii (Roux, 1828) (Crustacea, Stomatopoda, Parasquillidae) in the northwestern Mediterranean. A population of the poorly-known stomatopod crustacean, Pseudosquillopsis cerisii, was detected in the NW Mediterranean Sea. To date, in Mediterranean waters, this species was only known from rare reports that were mainly based on the occurrence of single individuals. Analysis of the stomach contents of fish predators caught in coastal trammel-net artisanal fisheries revealed several individuals of this species on a sandy bottom with nearby Posidonia seagrass beds in an area within the vicinity of Vilanova i la Geltrú (Catalonia). This is the first report of the species from Iberian Peninsula waters.

A Rarely Reported Crustacean Species, Rissoides pallidus (Giesbrecht, 1910) (Stomatopoda, Squillidae), Caught in the Strait of Sicily Waters (Central Mediterranean Sea)

“…The morphological characteristics of the R. pallidus specimens of our current study agreed with the description provided by Manning [19] and Lewinsohn and Manning [18]. R. pallidus can sometimes be confused with R. desmaresti [33]. Specifically, R. pallidus is characterized by the long antennular peduncle, lateral process of the fifth thoracic somite (which is considered laterally sharp), lateral carinae of the fourth abdominal somite (which is considered armed posteriorly), and a series of spinules on the inner margin of the basal prolongation of the uropod [18,28].…”

“…The weights of the two specimens were 1.26 and 0.26 g, respectively. In particular, the biometrics were similar to those reported by previous authors [18,28,31,33,42]. For The weights of the two specimens were 1.26 and 0.26 g, respectively.…”

“…For The weights of the two specimens were 1.26 and 0.26 g, respectively. In particular, the biometrics were similar to those reported by previous authors [18,28,31,33,42]. For instance, Lewinsohn and Manning [18] reported the TL of females at 47 mm and 45 mm for males.…”

“…Figure 1 shows the distribution map of R. pallidus based on previous and current studies within the Mediterranean basin. ; orange, Manning and Froglia [28]; black, Lewinsohn and Manning [18]; blue, Valladares [29]; dark green, De Ranieri and Mori [30]; asterisk in black, Froglia [31]; square in purple, Pipitone and Tumbiolo [32]; triangles in green, Abello et al [33]; sky blue, Dounas and Steude [17]; yellow, Kocatas and Katagan [34]; red, Abello et al [16]; rhombus in green, Biagi et al [35]; asterisk in salmon, D'onghia et al [36], triangles in black, Kevredikis and Galil [37]; dark green, Sartor et al Massi et al [27]; orange, Manning and Froglia [28]; black, Lewinsohn and Manning [18]; blue, Valladares [29]; dark green, De Ranieri and Mori [30]; asterisk in black, Froglia [31]; square in purple, Pipitone and Tumbiolo [32]; triangles in green, Abello et al [33]; sky blue, Dounas and Steude [17]; yellow, Kocatas and Katagan [34]; red, Abello et al [16]; rhombus in green, Biagi et al [35]; asterisk in salmon, D'onghia et al [36], triangles in black, Kevredikis and Galil [37]; dark green, Sartor et al [38]; blue, Colloca et al [39]; square in green, Ungaro et al [40]; sky blue, Mori et al [41]; yellow, Kocak [42], rhombus in dark blue, Innocenti [43]. Red star indicate the records of current study.…”

“…Specifically, the two R. pallidus specimens caught in the Strait of Sicily were females with 10 and 8 mm CL, 8 and 4 mm CW, and 48 and 33 mm TL, respectively (Figure 2). [25]; yellow, Demetropoulos and Neocleous [26]; pink, Massi et al [27]; orange, Manning and Froglia [28]; black, Lewinsohn and Manning [18]; blue, Valladares [29]; dark green, De Ranieri and Mori [30]; asterisk in black, Froglia [31]; square in purple, Pipitone and Tumbiolo [32]; triangles in green, Abello et al [33]; sky blue, Dounas and Steude [17]; yellow, Kocatas and Katagan [34]; red, Abello et al [16]; rhombus in green, Biagi et al [35]; asterisk in salmon, D'onghia et al [36], triangles in black, Kevredikis and Galil [37]; dark green, Sartor et al [38]; blue, Colloca et al [39]; square in green, Ungaro et al [40]; sky blue, Mori et al [41]; yellow, Kocak [42], rhombus in dark blue, Innocenti et al [43]. Red star indicate the records of current study.…”