Two new species of the Trimma tevegae species group from the Western Pacific (Percomorpha: Gobiidae)
aqua, International Journal of Ichthyology, pp. 29-38, Volume 10, Issue 1 – June 2005
Two new species of the Trimma tevegae species group are described. Members of this group are characterized by having a broad interorbital region about equal in width to the pupil diameter, and at least the first haemal arch greatly expanded, accommodating the posterior extension of the swim bladder. Both the new species have been misidentified as T. griffithsi in popular and/or scientific publications. Trimma marinae n. sp. is characterized by the presence of a large, bilateral, open nasal pit, few or no melanophores on the caudal peduncle, no scales on cheek, usually two rows of scales anterior to the pelvic fin base, an elongate second spine in the first dorsal fin, and a rounded medial ridge on the snout and anterior interorbital region. Trimma nasa n. sp. is distinguished by a small nasal sac with a tubular anterior opening and a raised rim to the posterior opening, a large spot consisting of melanophores and dark brown chromatophores over the hypural region of the caudal peduncle, a dark suffusion over the abdominal region, no scales on the cheek, usually four to five rows of scales anterior to the pelvic fin base, a broad interorbital region with a rounded, medial ridge on the snout and anterior interorbital region, and usually a thin dark stripe from the upper lip to the mid-region of the interorbital.
Akihito, K., Sakamoto, Y. Ikeda & K. Sugiyama. 2002. Gobioidae. pp. 1139-1310. In: Nakabo, T. (ed). Fishes of Japan with pictorial keys to the species. English edition vol. II, Tokai University Press.
Leviton, A. E., Gibbs, R. H., Heal, E. & C. E. Dawson. 1985. Standards in herpetology and ichthyology. Part I. Standard symbolic codes for institutional resource collections in herpetology and ichthyology. Copeia, 1985: 802-832.
Saruwatari, T., Lopez J. A. & T. W. Pietsch. 1997. Cyanine blue: a versatile and harmless stain for specimen observation. Copeia, 1997: 840-841.
Senou, H., Suzuki, T., Shipukawa, K. & K. Yano. 2004. A Photographic Guide to the Gobioid Fishes of Japan. Heibonsha Publishers, Japan. 534 pp.
Kuiter, R. H. & T. Tonozuka. 2004. Pictorial Guide to Indonesian Reef Fishes, Part 3. PT Dive & Dive’s, Bali, Indonesia. Pp. 623-893.
Winterbottom, R. 1984. A review of the gobiid fish genus Trimma from the Chagos Archipelago, central Indian Ocean, with the description of seven new species. Canadian Journal of Zoology, 62: 695-715.
Winterbottom, R. 2002. Two new species of Trimma (Gobiidae) from the central, western and south Pacific. aqua, Journal of Ichthyology and Aquatic Biology, 5 (2), 45-52.