Occurrence of Deep-sea shrimp, Hadropenaeus lucasii (Spence Bate, 1881) from the southwest coast of India.

The present study provides an integrative report combining morphological and molecular analysis of the deep sea shrimp species Hadropenaeus lucasii (Spence Bate, 1881) from the southwest coast of India. The present specimen was obtained from the depths of 200-300m from the commercial bottom trawlers operated off Sakthikulangara fishing harbour off Kollam, Kerala. A phylogenetic analysis was used to explore the relationships of the genus. DNA barcoding and phylogenetic analysis were used to explore the relationship of the genus Hadropenaeus based on mitochondrial gene (16S: OK571387, OK571388; COI: OK569849, OK569850) sequences of the present specimen with the sequences retrieved from NCBI GenBank revealed an interspecies genetic divergence of 0.0% to 0.6%.

Trachysalambria aspera (Alcock, 1905) (Crustacea, Decapoda, Penaeidae) from the southeastern Arabian Sea, India.

Trachysalambria aspera (Alcock, 1905) was first reported and described in detail by Alcock (1905) as Trachypeaneus asper Alcock, 1905, from the Ganjam coast (Odisha, India) and Andaman Sea. Chan et al. (2016) revised the species under the genus Trachysalambria based on molecular genetic data and resolved the confusion in their taxonomy in literature. However, they could not examine the types of T. aspera due to their non-availability (Chan et al. 2016). So we discuss the characters of the species based on the photograph of the type specimen from the Zoological Survey of India, Kolkata with that of Chan et al. (2016) and also with the specimens collected from southwest coast of India where the species has not been reported earlier, but only Trachysalambria curvirostris (George, 1967). Earlier, among Trachysalambria species, T. curvirostris was reported from both the east (Bay of Bengal) and west coasts (Arabian Sea) of Indian waters (Kunju, 1960; George, 1967; Muthu, 1971; Thomas, 1976). Chan et al. (2016) states that T. curvirostris may have a restricted distribution to northern Pacific Ocean.

A new record of deep-sea shrimp Glyphocrangon investigatoris Wood-Mason amp; Alcock, 1891 (Decapoda: Glyphocrangonidae) from the southeastern Arabian Sea.

Here, we report the new record of deep-sea caridean shrimp Glyphocrangon investigatoris Wood-Mason Alcock, 1891 from the Arabian Sea along the Indian coast. The three individual specimens were collected from Sakthikulangara fish landing center (fishing off Kollam 8°56'60.78"N/76°32'34.27"E) obtained from deep-sea bottom trawlers between 200 and 300 m depth along the southwest coast of India in December of 2017 and the voucher specimen was deposited to the Marine Biodiversity Referral Museum at Central Marine Fisheries Research Institute. The species of G. investigatoris is considered as one of the data deficient in distributional range, which was only recorded from northern and southern Bay of Bengal. The intraspecies genetic distance in the COI gene of G. investigatoris retrieved from NCBI revealed 0.6-0.7% while interspecies distance ranged from 5% to 26.5% and 16S was found between 1.1% to 8.1% and the closest genetic distance ranged with G. regalis.