Bogidiella Indica, a New Species of Subterranean Amphipod Crustacean
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Old Dominion University ODU Digital Commons Biological Sciences Faculty Publications Biological Sciences 2006 Bogidiella indica, A New Species of Subterranean Amphipod Crustacean (Bogidiellidae) from Wells in Southeastern India, with Remarks on the Biogeographic Importance of Recently Discovered Bogidiellids on the Indian Subcontinent John R. Holsinger Old Dominion University Y. Ranga Reddy Mohammed Messouli Follow this and additional works at: https://digitalcommons.odu.edu/biology_fac_pubs Part of the Biodiversity Commons, and the Biology Commons Repository Citation Holsinger, John R.; Reddy, Y. Ranga; and Messouli, Mohammed, "Bogidiella indica, A New Species of Subterranean Amphipod Crustacean (Bogidiellidae) from Wells in Southeastern India, with Remarks on the Biogeographic Importance of Recently Discovered Bogidiellids on the Indian Subcontinent" (2006). Biological Sciences Faculty Publications. 367. https://digitalcommons.odu.edu/biology_fac_pubs/367 Original Publication Citation Holsinger, J., Ranga Reddy, Y., & Messouli, M. (2006). Bogidiella indica, a new species of subterranean amphipod crustacean (Bogidiellidae) from wells in Southeastern India, with remarks on the biogeographic importance of recently discovered Bogidiellids on the Indian subcontinent. Subterranean Biology, 4, 45-54. This Article is brought to you for free and open access by the Biological Sciences at ODU Digital Commons. It has been accepted for inclusion in Biological Sciences Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Subterranean Biology 4: 45-54, 2006 Bogidiella indica, a new species of subterranean Amphipod Crustacean (Bogidiellidae) from wells in Southeastern India, with remarks on the biogeographic importance of recently discovered Bogidiellids on the Indian subcontinent 2 3 John R. HOLSINGER Ol, Y. Ranga REDDY ( J and Mohammed MESSOULI ( > <1l Department of Biological Sciences, Old Dominion University, Norfolk, Virginia 23529-0266, USA; e-mail: [email protected] (21 Department of Zoology, Acharya Nagarjuna University, Nagarjunanagar 522510, India. (31 UCAM, Faculty of Sciences, Department of Biology Sciences, LHEA, BP2390 Marrakesh, Morocco. ABSTRACT Bogidiella indica, new species, is described from three water wells in southeastern India, including a bore-well on the campus of Acharya Nagarjuna University in Nagarjunanagar, a water well in Guntur town, and an agricultural well in the Godavari and Krishna Basin, all in the state of Andlrra Pradesh, India. The new species is assigned to the genus Bogidiella Hertzog and to a newly designated species group within the genus. Despite the near circum-global distribution of the family Bogidiellidae, only a single, partially intact specimen of a bogidiellid had been collected from the Indian subcontinent prior to the discovery of specimens from the well in Nagar junanagar. Including the new tax.on described in this paper, the family Bogidiellidae contains 35 genera and 106 species. Although B. indica is closely similar to other species presently assigned to the genus Bogidiella, it is easily distinguished by a proportionately shorter and relatively heavily spinose pereopod 5. The sexes are generally similar except that the male bears a large, distally modified apical spine on the inner ramus of uropod 1. The location of the well sites within 45 to 50 km of the eastern coast of India strongly suggests that they lie in an area that was submerged under shallow marine water.within the last 1 million years. Key words: subterranean amphipods, Bogidiella, bore-well, groundwater, stygobitic INTRODUCTION America, and southern Europe. A significant number of species also occur in parts of Asia Minor, eastern Africa, During recent ongoing investigation of subterra the Arabian Peninsula, Asia, and Australia (Iannilli et al nean groundwaters in the state of Andhra Pradesh, one 2006). More than one-half of the species are recorded of us (YRR) collected blind, unpigmented amphipods from subterranean freshwaters, but a significant number from a bore-well on the campus of Acharya Nagarjuna are found in anchialine habitats in coastal areas and in University in Nagarjunanagar. Subsequently, additional terstitial habitats in marine sediments. collections were made from a well in Guntur town, ap The only other stygobitic amphipod recorded from proximately 13 km southwest of AcharyaNagarjuna Uni India is lndoniphargus indicus (Chilton), which is taxo versity, and an agricultural well in Doddigunta village in nomically very different from Bogidiella and reported the Godavari-Krishna basin, about 165 km northeast of from various groundwater habitats (e.g., springs, well the university. These specimens represent a new species water, mine pit) in the northeastern states of Bihar, of the subterranean amphipod genus Bogidiella Hertzog Orissa and West Bengal. This species was originally (1933), which is described below. Prior to this discovery described by Chilton (1923) from specimens collected only a single, poorly preserved, broken specimen of Bo from a 100 meter-deep pit in a coal mine in Asansol, gidiella was known to us from India. This specimen was West Bengal and placed in the genus Niphargus; it was collected with a suction pump from groundwater near later redescribed and moved to the genus Neoniphargus Chidambaram, approximately 550 km south of Acharya by Stephensen (1931). Subsequently, Straskraba (1967) Nagarjuna University, and was deposited in the U. S. added new data on its taxonomy and distribution and re National Museum of Natural History (USNM 262176) assigned the species to the new genus Jndoniphargus. by S. Swaminathan in 1965. The description of this new species brings the total number of described species in the family Bogidielli SYSTEMATICS dae to 106. The occurrence ofbogidiellid amphipods on the Indian subcontinent is not surprising in view of the Bogidiella indica, sp. nov. globally widepread distribution of the family. However, (Figs 1- 5) the overall distribution is discontinuous, with large con Material examined centrations of species in southern North America, South INDIA. Andhra Pradesh, Nagarjunanagar: bore-well 46 J.R. Holsinger, Y.R. Reddy and M. Messouli Fig. 1- Bogidiella indica, new species, male paratype (5.3 mm), well at Guntur town, Andhra Pradesh State, India: entire animal from right side. at Block II on campus of Acharya Nagarjuna University, curved, distally dentate apical spine. Largest males 5.3 ca. 13 km ENE of Guntur town, 25 paratypes (males, -5.5 mm; largest female 5.0 mm. females, juveniles), Y. Ranga Reddy, Nov. 1998-July 2005; male holotype (5.5 mm) and male paratype (5.5 Female (5.0 mm) mm), Y. Ranga Reddy, 8 Sept. 2005; 2 paratypes (ca. 4.5 Interantennal (lateral) lobe (Fig. 2A) of head distinct, mm), Y. Ranga Reddy, 19 Sept. 2005. Guntur towri: wa rounded apically. Antenna 1 (Fig. 2B) ca. 33-35 % length ter well, 1 male paratype (5.3 mm); agricultural well in of body, ca. 2x length of antenna 2, primary flagellum Doddigunta village (Godavari-Krishna basin), 38 para with 10 segments, aesthetascs present on some flagellar types (mostly females; largest ones ca.3.5 - 4.0 mm), Y. segments; accessory flagellum I-segmented, not exceed Ranga Reddy, late 2005/early 2006. ing length of accompanying flagellar segment. Antenna The holotype is deposited in the National Museum of 2 (Fig. 2C) with up to 5 flagellar segments, last one Natural History (Smithsonian Institution) under the cat greatly reduced. Right mandible (Fig. 2D): molar tiny, alog number of the former United States National Mu vestigial, indicated by 3 short, lightly plumose spines; seum (USNM 1088540); paratypes are deposited in the incisor 5-dentate, lacinia mobilis also 5-dentate, spine National Museum of Natural History (USNM 1088541) row with 3 lightly plumose spines; palp 3-segmented, and the research collections of J. Holsinger (JRH 4317 2nd segment longest and bearing 1 seta distally on in & 4351) and M. Messouli. ner margin, 3rd segment with single long seta on apex. Left mandible (Fig. 2E): molar vestigial, cone shaped, Diagnosis bearing 3 lightly plumose spines; incisor 5-dentate, lac Bogidiellid amphipod of stygomorphic facies (Fig. inia mobilis consisting of 2 small plates of unequal size, 1), distinguished by reduced accessory flagellum with with serrated upper margins, spine row with 3 lightly single, short article; greatly reduced mandibular molars; plumose spines; palp similar to that of right mandible. proportionately short pereopod 5 with relatively large Lower lip (Fig. 2F): outer lobes separate by distinct gap; basis and strong spines on segments 5 and 6; coxal gills inner lobes much lower than outer but relatively well on pereopods 2, 3, 4, 5, and 6; tiny suboval brood plates developed. Maxilla 1 (Fig. 2G): inner plate bearing 4 na on pereopods 2, 3, 4, and 5; and sexually dimorphic in ked apical setae; outer plate with 6 apical serrate (comb ner ram us of uropod 1 of male, which bears an elongate, like) spines; palp 2-segmented, 2nd segment with 2 apical A new species of the subterranean arnphipod genus Bogidiella from India 47 H / A G ' ..... ______ ..,. F E D Fig. 2 - Bogidiella indica, new species, female paratype (4.5 mm), bore-well, Acharya Nagarjuna University, Andhra Pradesh State, India: A, anterior part of head; B, antenna !(accessory flagellum, asethetascs and accompanying flagellar segments enlarged); C, antenna 2; F, lower lip; G, maxilla l; H, maxilla 2; I, maxilliped.