First record of Marbled snake eel, Ophichthus lithinus (Jordan & Richardson 1908) (Ophichthidae: Anguilliformes) from Bangladesh marine water Author Rasel Mia, M. D. 1,2 * & Jagannath University, Department of Zoology, Dhaka - 1100, Bangladesh; Email: jnujayed 2017 @ gmail. com Author Selim, Shamsur Rahman 1,2 * & Jagannath University, Department of Zoology, Dhaka - 1100, Bangladesh; Email: jnujayed 2017 @ gmail. com Author Rahman, Md Habibur 1,2 * & Jagannath University, Department of Zoology, Dhaka - 1100, Bangladesh; Email: jnujayed 2017 @ gmail. com Author Islam, Md Jayedul 1,2 * & Jagannath University, Department of Zoology, Dhaka - 1100, Bangladesh; Email: jnujayed 2017 @ gmail. com & 1,2 * & Sher-e-Bangla Agricultural University, Department of Fisheries Biology and Genetics, Aquatic Bioresource Research Lab, Dhaka - 1207, Bangladesh text Records of the Zoological Survey of India 2022 122 1 37 42 journal article 293564 10.26515/rzsi/v122/i1/2022/155991 ff797f2c-0f3c-44da-8bfd-0d82fe437a01 2581-8686 10966842

Table1. Morphometric measurements (mm) of the collected speciemen of Ophichthus lithinus in the present study and compare with the previously reported specimens

	O. lithinus (Present study)	O. lithinus (Ray et al., 2015)
Total length	693
Proportion in total length
Body depth on dorsal fin origin	39.83	33.6
Body depth at pectoral fin origin	39.83	–
Body depth at anus	35.72	35.4
Head length	9.90	10–10.3
Trunk length	2.24	2.4–2.5
Lower jaw length	34.65	–
Upper jaw length	30.13	–
Pre dorsal length	8.06	8.6–8.8
Pre pectoral length	9.49	–
Preanal length	1.82	19–2
Dorsal-fin length	10.50	–
Pectoral-fin length	46.20	–
Proportion in Head length
Eye length	10.00	11.2 (10.8)
Lower jaw length	3.50	3.8–4.1
Upper jaw length	3.04	2.9–3.1
Snout length	5.38	–
Interorbital space	7.37	7–7.3
Fin less area of tail region	14.00	14.3
	Counts
Dorsal fin ray	293	294–296
Pectoral-fin ray	11	11
Anal-fin ray	134	135–136