57? SMITHIANA Publications in Aquatic Biodiversity Bulletin No. 9, November 2008 Published by the South African Institute for Aquatic Biodiversity SAIAB Margaret Mary Smith (1916-198 7), James Leonard Brier ley Smith (1897-1968) with their dog Marlin The publication series (Monographs, Bulletins & Special Publications) of SAIAB (formerly the JLB Smith Institute of Ichthyology), in its new format, honours James Leonard Brierley Smith and Margaret Mary Smith with the name Smithiana, in recognition of their many years of devoted service to African aquatic biology. Their life's work, a team effort, established modern ichthyology in southern Africa and laid the groundwork for the expansion of aquatic biology throughout the region. All contents of this publication © 2007, The South African Institute for Aquatic Biodiversity, Grahamstown Front cover photograph: Left pectoral fin of a preserved coelacanth specimen by Wouter Holleman. © SAIAB, 2006. SMITHIANA BULLETIN NO. 9 CONTENTS Reviewers for Bulletin 7, 8 & 9 . 2 John E. Randall, Jeffrey T. Williams & Luiz A. Rocha. The Indo-Pacific tetraodontid fish Canthigaster coronata, a complex of three species . 3 John E. Randall & Jennifer K. Schultz. Cirrhitops mascarenensis, a new species of hawkfish from the Mascarene Islands, southwestern Indian Ocean . 15 John E. Randall & Phillip C. Heemstra. Ammodytoides xanthops, a new species of sandlance (Perciformes: Ammodytidae) from Mozambique . 21 ERRATA SMITHIANA BULLETIN 9 Page 3 ff - Randall et al.: all references to C. axiologa should read C. axiologus Page 5 — Table 1: C. axoliogia should read C. axiologus Page 15 — Fig. 1 caption: Mauritius should read Hawaian Islands Please note that SAIAB's url has changed from www.saiab.ru.ac.za to www.saiab.ac.za Smithiana Bulletins and Monographs are publications of the South African Institute for Aquatic Biodiversity, for original scientific articles in the fields of taxonomy, systematics, ethology, ecology, biogeography and conserva¬ tion of the fishes of Africa and its surrounding waters. Priority will be given to papers by staff and associates of the Institute. Manuscripts from outside the Institute will be considered if they are pertinent to the work of the Institute or use the Institute's collections. Editor: Mr Wouter Holleman SAIAB: Scientific Publications, Private Bag 1015, Grahamstown, 6140 South Africa w.holleman@ru.ac.za For instructions to authors, please see the publications page at http:/ / www.saiab. .ac.za The publi (formerly Leonard E _ , — recognitior _ _ iy ycms or ae voted service to African aquatic biology. Then- life's work, a team effort, established modem ichthyology in southern Africa and laid _ the groundwork for the expansion of aquatic biology throughout the region. All contents of this publication © 2007, The South African Institute for Aquatic Biodiversity, Grahamstown Front cover photograph: Left pectoral fin of a preserved coelacanth specimen by Wouter Holleman. © SAIAB, 2006. SMITHLANA BULLETIN NO. 9 CONTENTS Reviewers for Bulletin 7, 8 & 9 . 2 John E. Randall, Jeffrey T. Williams & Luiz A. Rocha. The Indo-Pacific tetraodontid fish Canthigaster coronata, a complex of three species . 3 John E. Randall & Jennifer K. Schultz. Cirrhitops mascarenensis, a new species of hawkfish from the Mascarene Islands, southwestern Indian Ocean . 15 John E. Randall & Phillip C. Heemstra. Ammodytoides xanthops, a new species of sandlance (Perciformes: Ammodytidae) from Mozambique . 21 Smithiana Bulletins and Monographs are publications of the South African Institute for Aquatic Biodiversity, for original scientific articles in the fields of taxonomy, systematics, ethology, ecology, biogeography and conserva¬ tion of the fishes of Africa and its surrounding waters. Priority will be given to papers by staff and associates of the Institute. Manuscripts from outside the Institute will be considered if they are pertinent to the work of the Institute or use the Institute's collections. Editor: Mr Wouter Holleman SAIAB: Scientific Publications, Private Bag 1015, Grahamstown, 6140 South Africa w.holleman@ru.ac.za For instructions to authors, please see the publications page at http:// www.saiab. .ac.za Reviewers for Bulletin 7, 8 & 9 Those listed below reviewed manuscripts submitted for publication in Smithiana Bulletins 7, 8 and 9. By giving of their time — and they are all busy people — they contributed not only to the quality of the manuscripts submitted but to the quality of the journal. Their contribution is hereby gratefully acknowledged. Gerry Allen - Conservation International Colin Buxton - Tasmania Aquaculture and Fisheries Institute, Hobart Leonard Compagno - Iziko South African Museum, Cape Town Marcelo de Carvalho - Instituto de Biociencias, Univesidade de Sao Paulo Guy Duhamel - Museum Nationale Histoire Naturelle, Paris John L. Earle - Bishop Museum, Honolulu Phillip C. Heemstra - South African Institute for Aquatic Biology, Grahamstown Brett Human - Adelaide Bruce Mann - Oceanographic Research Institute, Durban Peter Moller - Zoological Museum, University of Copenhagen Randy Mooi - Manitoba Museum Hiroyuki Motomura - Kagoshima University Bernard Seret - Museum Nationale Histoire Naturelle Malcolm Smale - Bayworld, Port Elizabeth David G Smith - National Museum of Natural History, Smithsonian Institution Jos Snoeks - Afrikamuseum, Tervuren Jim Tyler - National Museum of Natural History, Smithsonian Institution Richard Vari - National Museum of Natural History, Smithsonian Institution Mark Westneat - Field Museum of Natural History, Chicago Jeff Williams - National Museum of Natural History, Smithsonian Institution The Xndo-Pacific tetraodontid fish Canthigaster coronata, a complex of three species John E. Randall1, Jeffrey T. Williams2, and Luiz A. Rocha3 'Bishop Museum, 1525 Bernice St., Honolulu, HI 96817-2704, USA, e-mail jackr@hawaii.rr.com 2Division of Fishes, Department of Vertebrate Zoology, National Museum of Natural History, 4210 Silver Hill Road, Suitland, MD 20746, USA, e-mail williamsjt@si.edu 3Hawai'i Institute of Marine Biology, University of Hawai'i, P.O. Box 1346, Kaneohe, HI 96744, USA, e-mail rochal@hawaii.edu Submitted 7 November 2007, accepted 17 December 2007 Abstract. The tetraodontid fish Canthigaster coronata (Vaillant & Sauvage), formerly with a distribution of Hawaii and Tonga to the east coast of Africa and the Red Sea, is divided into three species: C. coronata, endemic to the Hawaiian Islands, C. axiologa Whitley from the rest of the Pacific west of the Hawaiian Islands, and C. cyanospilota, sp. nov. from the Indian Ocean and Red Sea (type locality. Gulf of Aqaba). In addition to being distinguishable at the control region of their mitochondrial DNA, the three species differ in the following characters: C. coronata is distinct in having numerous small yellow spots, but no blue markings (except around the eye), modally 17 pectoral rays (16 in C. axiologa from the North Pacific), the origin of the anal fin below or anterior to the rear base of the dorsal fin (below or posterior for the other two species), and a broader gill opening, 3.7-4.75 in head length, compared to 4.8-5.55 for C. axiologa and 5.4-6.5 for C. cyanospilota. Canthigaster axiologa ranges from Japan to New South Wales, east to the Marshall Islands and Tonga. It has bright blue spots associated with yellow spots or lines along the edges of the saddle-like brown bars, as well as elsewhere on the body and head, modally 16 pectoral rays in the North Pacific, and modally 17 in the South Pacific, and a broad interorbital space (3.75-4.4 in head length). Canthigaster cyanospilota has numerous small bright blue spots and lines, but no bright yellow spots, the dark saddle-like bars do not reach below the level of the upper end of the gill opening (extend below in C. axiologa and C. coronata ), and a narrow interorbital space (4.25-4.85 in head length). Divergence of the northern Red Sea population of C. cyanospilota from that of the Indian Ocean is discussed. Keywords: taxonomy, Tetraodontidae, Canthigaster, new species, Indian Ocean INTRODUCTION The 33 species of the fish genus Canthigaster Swainston, popularly known as tobies or sharpnose puffers, have been classified by some authors, such as Tyler (1967), as a separate family, the Canthigasteridae, but by most authors as a subfamily of the Tetraodontidae. The study of the order Tetraodontiformes by Tyler (1980) and Alfaro et al. (2007) clearly shows that the genus should not be regarded as a distinct family. The genus Canthigaster is differentiated from the remaining genera of the Tetraodontidae by a laterally compressed body, elongate pointed snout, erectile ridge of skin middorsally and midventrally, small gill opening, inconspicuous lateral line, 17 vertebrae, and small size. The bright colour patterns of the species probably serve to advertise their repelling skin toxin. The first author tried to feed a small one to a snapper (Lutjanus kasmira) at the MidPacific Research Laboratory at Enewetak Atoll in the Marshall Islands. It was seized by the snapper and quickly ejected. Tyler (1967) wrote that the species of Canthigaster are the most uniform of the tetraodontiform fishes. He added, "Proportional measurements of the species tend to be the same" and "with few exceptions, the species are distinguished mostly on the basis of colour pattern." He noted that previous authors failed to distinguish C. coronata (Vaillant & Sauvage) from C. valentini (Bleeker), both with saddle-like black bars on the body. He provided a detailed account to separate the two. Allen & Randall (1977) reviewed the genus for the Indo-Pacific region, recognizing 22 species. Since their review, C. flavoreticulata Matsuura (1986) was described from the Tonga Submarine Ridge in 98-111 m, C. cyanetron Randall & Cea Egana (1989) from Easter Island, C. punctata Matsuura (1992) from the Mascarene Submarine Ridge in 92 m, and C. papua (Bleeker) was Smithiana Bulletin 9: 3-13 4 Randall, Williams & Rocha removed from the synonymy of C. solandri (Richardson) (Anderson et al., 1998). Allen & Randall gave the distribution of Canthigaster coronata as the Hawaiian Islands (type locality) to the east coast of Africa and the Red Sea; in the western Pacific from Japan to New South Wales. We have noticed that the species is different in colour in the Hawaiian Islands from elsewhere in the Pacific, and even more different in the Indian Ocean, including the Red Sea. In the present paper we restrict the name C. coronata to the population in the Hawaiian Islands and Johnston Island, C. axiologa Whitley, type locality Great Barrier Reef, for the species in the North Pacific west of Hawaii and in the South Pacific from Tonga to the west, and we describe the Red Sea and Indian Ocean species as new. At first, we experienced difficulty finding morphological differences to distinguish the species of these three areas of the Indo-Pacific, so we obtained tissue samples and tried to differentiate them by DNA. The mitochondrial DNA differences were not very large, but support significant phylogenetic breaks among species. On renewing our efforts to find something morphologically diagnostic to correlate with colour and DNA, we were able to distinguish the Hawaiian species by modal differences in pectoral and anal ray counts (Table 1) and in a few measurements (Table 2). MATERIALS AND METHODS Specimens of the new species are deposited in the Academy of Natural Sciences of Philadelphia (ANSP); the Natural History Museum, London (BMNH); Bernice P. Bishop Museum, Honolulu (BPBM); Hebrew University, Jerusalem (HUJ); National Museum of Nature and Science, Tokyo (NSMT); South African Institute for Aquatic Biodiversity, Grahamstown (SAIAB); and the National Museum of Natural History, Washington, D.C. (USNM). Other specimens for this study have been sent on loan from the Australian Museum, Sydney (AMS); Academy of Natural Sciences of Philadelphia (ANSP); California Academy of Sciences, San Francisco (CAS, SU); the University of Guam, Mangilao (UG); and the Royal Ontario Museum, Toronto (ROM). The length of specimens is given as standard length (SL), measured from the median anterior end of the upper dental plate to the base of the caudal fin (posterior end of the hypural plate); body depth is the slightly oblique measurement from the origin of the dorsal fin to the origin of the anal fin (maximum body depth is too variable in species of Canthigaster); body width is measured at the base of the pectoral fins; head length is taken from the front of the upper dental plate to the dorsal end of the gill opening; orbit diameter is the greatest diameter of the unpigmented skin over the eye, and interorbital width the least bony width; snout length is measured from the upper dental plate to the nearest unpigmented cutaneous edge of the eye; length of the gill opening is taken by inserting divider tips and spreading for the maximum firm edges; caudal- peduncle depth is the least depth, and caudal-peduncle length the horizontal distance between verticals at the rear base of the anal fin and the caudal-fin base; lengths of fins are the length of the longest rays. Morphometric data were taken for specimens 47 mm or more in standard length. The measurements for the new species are presented in Table 3 as percentages of the standard length; in the descriptions as proportional measurements of the standard length or head length, rounded to the nearest 0.5. Some specimens are too misshapen for measurements but were used for counts. The counts of pectoral rays include the short uppermost ray. Meristic and morphometric data in parentheses refer to paratypes. Genomic DNA was extracted from fin clips. In order to address differentiation at the species level, two new primers (CANT-CR-F: 5' CCA AAG CCA GCA TTC TCA AT 3'; and CANT-CR-R: 5' CTC GGG GGT TTC CTG TTT C 3') were used to amplify the mitochondrial DNA (mtDNA) control region of Canthigaster. These primers were constructed based on the alignment of the entire mitochondrial DNA sequences of C. coronata and C. rivulata (Genbank accession numbers AP006743 and AP006744 respectively). PCR conditions and sequencing protocols are described in detail by Rocha (2004). Canthigaster coronata (Vaillant & Sauvage) (Plate 1A, B; Tables 1, 2) Tetraodon (Anosmias) coronatus Vaillant & Sauvage, 1875: 286 (type locality, Hawaiian Islands). Canthigaster cinctus (non Solander) Jordan & Evermann, 1905: 433, fig. 189 (type locality, Hawaiian Islands). Diagnosis. Dorsal rays 9-11 (usually 10, rarely 9); anal rays 9 or 10 (usually 10); pectoral rays 15-18 (usually 17); gill rakers 7-9; body depth between origins of dorsal and anal fins 2.8-3.25 in SL; head length 2.3- 2.55 in SL; interorbital width 3.9-4.45 in head length; gill opening 3.7-4.75 in head length; origin of anal fin below or anterior to rear base of dorsal fin, the preanal length 1.35-1.4 in SL; longest dorsal ray 2.2-2.S in head length; colour in alcohol pale grey to pale tan with three triangular dark brown saddle-like bars dorsally on body, progressively more oblique posteriorly, the first extending narrowly to ventral edge of gill opening, the second to level of lower edge of pectoral-fin base and enclosing base of dorsal fin posteriorly, and the last ending at upper base of caudal fin; a dark brown band across posterior interorbital and anterior occiput; a dark brown spot below base of pectoral fin; many small pale spots (most about half pupil diameter) on head and body, faint or absent on paler parts of body but very Smithiana Bulletin 9: 3-13 The Canthigaster coronata species complex 5 evident on edges, within dark bars, and on head where ground colour darker; narrow pale bands and spots around eye; lips pale, encircled with a narrow dusky band; a thin dark brown line midventrally on abdomen and chest present or absent (may be broken to long segments); fins pale, the upper and lower margins of caudal fin with a broad brown band, darker at base; colour when fresh as in Plate 1 A; colour in life shown in Plate IB (noteworthy are the many small yellow spots, and the lack of blue spots — blue only between yellow markings around eye). Largest specimen examined, 111 mm SL. Remarks. Vaillant & Sauvage (1875) described Canthigaster coronata from the Hawaiian Islands in a brief but diagnostic description. They did not list their material, but Tyler (1967: 63) examined the holotype, MNHN 9006, 103.2 mm SL. Jordan & Evermann (1905: 433) believed that Tetrodon cinctus Solander in Richardson (1845: 125) is an older available name for the species and used it in their volume on Hawaiian fishes. However, the name cinctus was merely mentioned in Richardson's description of Canthigaster solandri (then in Tetrodon ) as seen on a drawing by Sydney Parkinson of a species from Tahiti obtained during Captain Cook's first circumnavigation. Since the species was not described by Richardson, Jordan & Evermann became the authors of the name cinctus for a Hawaiian species. Tyler (1967: 61) explained that Gunther (1910: 466) saw the drawing by Parkinson and realized it was the young of the puffer Arothron stellatus. Jordan & Seale (1906: 373) used the name Canthigaster cinctus in their volume. The Fishes of Samoa, and placed Tropidichthys valentini Bleeker and Tetraodon coronatus Vaillant & Sauvage in the synonymy of C. cinctus. Tyler showed that C. valentini is a valid species similar to C. coronata and that C. cinctus Jordan & Evermann is a synonym of C. coronata. He listed no specimens of C. coronata from the South Pacific but examined specimens of C. valentini east to the Society Islands and Tuamotu Archipelago. We first suspected that Canthigaster coronata was endemic to the Hawaiian Islands when we noticed that it lacks blue spots on the body, including those along the edge of the dark saddles, as seen on fish identified as C. coronata elsewhere; also there is no solid, curved orange-yellow stripe on the lower side of the head. We then found a strong modal count of 17 pectoral rays, compared to 16 in specimens from the North Pacific to the west of Hawai'i, and a higher percentage of specimens with 10 anal rays (see Table 1). The modal count of 17 pectoral rays in our few specimens from the southwest Pacific is an independent divergence (see account of C. axiologa below). We made 12 morphometric measurements of our specimens as percentages of the SL (Table 2). The gill opening is longer in C. coronata (9.2-10.7% SL compared to 6.4-8. 6% SL), the dorsal fin is higher (17.0-18.8% SL, compared to 14.0-17.6%), and the preanal length is shorter on the average, 70.6-74.8% SL, compared to 72.5-78.8% SL). This was evident when we noticed that the origin of the anal fin is directly below or anterior to the rear base of the dorsal fin (below or posterior on the other two species). No specimens of C. coronata have been collected at Johnston Island, an outlier of the Hawaiian Archipelago, but the species was reported as a sight record for the island by Kosaki et al. (1991: 196), and it was illustrated by Lobel (2003: 120, middle fig.) from an underwater photograph. Canthigaster coronata generally occurs at depths of 12 m or more; however, it has been collected in as little as 6 m. When shallow, it is usually found in lagoons or bays. The usual habitat is sand or sand and rubble bottom or algal flats, often in the vicinity of coral reefs. Gilbert (1905: 626) listed specimens from trawl stations in 79-165 m off Moloka'i, Maui, and Kaua'i. Struhsaker (1973: 141) obtained 7-48 individuals per station in three trawl hauls on the Penguin Bank in the Table 1. Fin-ray counts of species of the Canthigaster coronata complex. Dorsal rays 9 10 11 Anal rays 8 9 10 Pectoral rays1 15 16 17 18 C. coronata (Hawaiian Islands) 1 33 3 23 14 9 61 4 C. axoliogia (NW Pacific)2 4 23 2 25 11 32 11 C. axoliogia (SW Pacific)3 11 1 10 2 6 14 4 ' C. cyanospilota (Indian Ocean)4 17 1 17 1 13 15 C. cyanospilota (Red Sea)5 6 2 1 7 4 12 ^oth sides counted 2Marshall Is, Caroline Is, Palau, Japan, Taiwan, Philippines and South China Sea Queensland, New South Wales and Tonga 4Somalia (including Gulf of Aden coast), Kenya, KwaZulu-Natal, Reunion and Mauritius 5Gulf of Aqaba Smithiana Bulletin 9: 3-13 6 Randall, Williams & Rocha Table 2. Range in proportional measurements of the species of the Canthigaster coronata complex as percentages of the standard length. Standard length Body depth Head length Snout length Eye diameter Interorbit -al width Gill opening Predorsal length Preanal length Dorsa!»fin length Anal-fin length Caudal fin length Pectoral- fin length C. coronata (n=17) 50-102 mm 30.8-35.9 39.4-44.0 26.1-30.5 7.8-10.9 9.0-10.7 9.2-10.7 71.3-74.0 70.6-74.8 17.0-18.8 12.2-15.5 28.1-33.0 15.0-17.7 C. axiologa (n=13) 50-101 mm 30.5-33.1 39.9-43.7 25.2-28.1 6.9-11.6 9.6-11.2 7.4-8. 6 72.3-74.7 73.8-78.8 14.2-17.6 13.1-15.4 25.7-32.2 13.9-17.1 C. cyanospilota (n=17) 41-111 mm 27.4-33.3 40.6-45.3 23.9-30.3 7.0-10.3 8. 5-9.6 S.4-7.8 70.1-75.0 72.5-78.5 14.0-17.4 11.6-16.2 27.2-34.8 13.0-16.6 Kaiwi Channel (between O'ahu and Moloka'i). The first author speared nine in a single tank dive for food-habit study off Waimea Bay, O'ahu at a depth 12-15 m. Five individuals of the endemic Canthigaster jactator were sighted during the same dive. Allen & Randall (1977: 487) listed the stomach and gut contents of 12 specimens of C. coronata from O'ahu as 13% algae and detritus, 11.9% gastropods, 10.0% crabs, 9.7% pelecypods, 8.9% polychaetes, 7.7% sponge, 7.0% sipunculids, 6.7% ophiuroids, 5.9% bryozoans, 4.7% tunicates (mostly didemnids), 3.3% echinoids, 2.4% foraminifera, 1.7% amphipods, 0.7% shrimps, 0.1% isopods, and 6.6% unidentified. Material examined. Hawaiian Islands: O'ahu, BPBM 8497, 73 mm; BPBM 9045, 92 mm; BPBM 11484, 9: 50-85 mm; SAIAB 2374, 3: 81-86 mm. Moloka'i, BPBM 24019, 9: 66-102 mm. Midway, BPBM 35367, 83 mm. Middle Bank (22°44'N, 161°4'W), BPBM 24903, 50 mm; BPBM 24908, 2: 74-85 mm; BPBM 24918, 8: 67-91 mm; BPBM 24928, 69 mm. Canthigaster axiologa Whitley (Fig. 1; Plate 1 C-l H, Plate 2 A, B; Tables 1, 2) Canthigaster axiologus Whitley, 1931: 333 (type locality, near Capricorn Group, Great Barrier Reef). Diagnosis. Dorsal rays 9-11 (usually 10, rarely 11); anal rays 9 or 10 (usually 9); pectoral rays 15-18 (modally 16 in the North Pacific and 17 in the South Pacific); gill rakers 7-9; body depth between origins of dorsal and anal fins 3 . 0-3.3 in SL; head length 2.3-2.S in SL; interorbital width 3.75-4.4 in head length; gill opening 4.8-5.55 in head length; origin of anal fin below or posterior to rear base of dorsal fin, the preanal length 1.25-1.35 in SL; longest dorsal ray 2.4-2.9 in head length. Colour in alcohol pale grey to pale tan with three saddle-like, dark brown bars on body as described above for C. coronata, the edges of bars with close-set, small, pale-edged dark spots or short lines, irregularly alternating with unpigmented pale spots or lines; ventral part of body with or without small pale spots or pale-edged dark spots; a broad dark brown band across posterior interorbital and anterior occiput; a dark brown spot below base of pectoral fin; a narrow curved pale band edged in small dark spots from chin to below gill opening; a pale area around eye with radiating dark brown lines (except adjacent interorbital band); a mid ventral dark brown line on head and abdomen varying from faint to conspicuous; lips pale, usually rimmed by a dusky band; fins pale grey, the upper and lower edges of caudal fin with or without a broad dark marginal band. Colour when fresh shown in Plate 1 C from Japan and Plate 1 E of a juvenile from Palau with yellow spots within the dark brown bars; colour in life in Plate 1 D and F-H from the Ogasawara Islands, Taiwan, Indonesia, and the Great Barrier Reef. Largest specimen examined, 101 mm SL, from Japan. Remarks. McCulloch (1922: 245, Plate 14, fig. 1) identified a specimen of Canthigaster 131 mm long Fig. 1 . Holotype of Canthigaster axiologa Whitley, QM 1.3549, 100 mm (after McCulloch, 1922). from near the Capricorn Group of the southern Great Barrier Reef as C. cinctus (Richardson) Jordan & Evermann. Whitley (1931: 333) realized that C. cinctus is not a valid name, so he proposed the new name C. axiologus for McCulloch's fish (changed to axiologa because Canthigaster is feminine). The holotype, QM 1.3549, is in the Queensland Museum, Brisbane. It now measures 127.5 mm total length and 100 mm SL (Jeffrey W. Johnson, pers. comm.). We reproduce McCulloch's figure here as Fig. 1. We are applying the name C. axiologa to specimens we have examined from the Marshall Islands, Caroline Islands, Mariana Islands, Palau, mainland Japan, Ogasawara Islands, Ryukyu Islands, Taiwan, Macclesfield Bank (South China Sea), Philippines, Vietnam, Great Barrier Reef, New South Wales and Tonga. Allen & Swainson (1988: 156, Fig. 1043) recorded the species for Western Australia from Exmouth Gulf northwards; Kuiter (1992: 276, Fig. C) from Flores, Indonesia, and Laboute & Grandperrin (2000: 470, upper fig.) from New Caledonia, all as C. coronata. Canthigaster axiologa is distinct from C. coronata in having a narrower gill opening (7.4-8. 5% SL, compared Smithiana Bulletin 9: 3-13 The Canthigaster coronata species complex 7 to 9.2-10.5% for C. coronota), a shorter dorsal fin (14.2- 17.6 % SL vs. 17.0-18.8%), a longer preanal length (73.8- 78.8% SL vs. 71.6-74.7% SL), and in colour, principally in having blue spots or short lines associated with yellow spots or lines along the margins of the dark saddles on the body, scattered small blue spots mixed with yellow spots on the ventral part of the body, especially posteriorly (these spots may be pale), and a distinct curved orange-yellow band bordered by small blue spots on the lower side of the head. In addition, specimens from the North Pacific west of Hawai'i have modally 16 pectoral rays, compared to 17 for C. coronata, and 8 or 9 (rarely 8) instead of 9 or 10 anal rays (Table 2). Individuals of C. axiologa from Japan and Taiwan tend to have more small blue spots scattered with the yellow on the ventral half of the head and body, often broadly rimmed by yellow as shown by our Plate 1 G from Taiwan, and more extremely in Shen & Lim (1974: 18, Fig. 2), Masuda et al. (1984: Plate 332, Fig. I), and Masuda & Kobayashi (1994: 426, Fig. 3). Specimens in the South Pacific have modally 17 pectoral rays, compared to 16 for those from the North Pacific. We could find no morphometric or colour differences to link with the pectoral-ray count. We should add, however, that we have examined only 11 specimens from the South Pacific, all but two less than 53 mm SL. It should also be noted that the colour photograph identified as Canthigaster coronata in the book on the fishes of the Great Barrier Reef and Coral Sea (Randall et al., 1990: 476, upper fig.) was taken in Bali (Roger C. Steene, pers. comm.). Canthigaster axiologa inhabits the same sheltered habitat as C. coronata, often on open sand and rubble bottom near reefs. It appears to be far less common than C. coronata. Material examined. Marshall Islands: Kwajalein Atoll, BPBM 18436, 50 mm. Caroline Islands: Ifalik (Ifaluk) Atoll, CAS 15424, 54 mm. Mariana Islands: Guam, UG 6557, 55 mm. Palau: Ngeruktabel Island, ROM 79420, 33 mm. Japan: Ogasawara Islands, Chichi-jima, NSMT-P 31917, 84 mm. Haha-jima, NSMT-P 32799, 3: 22-101 mm. Izu Islands, Miyake-jima, NSMT-P 22211, 2: 36-48 mm; NSMT-P 22287, 32 mm; NSMT-P 30678, 59 mm. Honshu, Wakayama Prefecture, BPBM 7287, 52 mm. Shizuoka Prefecture, NSMT-P 19081, 2: 41-43 mm. Chiba Prefecture, NSMT-P 60320, 50 mm. Ryukyu Islands, Okinawa, BPBM 19159, 24 mm (bad condition). Taiwan: BPBM 23280, 65 mm. Philippines: Negros, SU 68574, 2: 76-77 mm. Siquijor, USNM 227245, 2: 67-68 mm. South China Sea: Macclesfield Bank, USNM 387502, 107 mm; USNM 387503, 69 mm; USNM 387505, 76 mm; USNM 387508, 84 mm. Vietnam, BPBM 40492, 68 mm. Australia: Great Barrier Reef, AMS 1.15681-061, 27 mm; AMS 1.18268-001, 52 mm; BPBM 40489, 2: 58- 67 mm; ROM 38231, 86 mm. New South Wales, AMS 1.15573, 37 mm; AMS 1.16952-001, 29 mm; AMS 1.19500- 001, 47 mm; AMS 1.41268-022, 24 mm; AMS 1.41273-040, 23 mm; AMS 1.41846, 27 mm. Tonga: BPBM 37938, 65 mm; USNM 334535, 78 mm. Canthigaster cyanospilota sp. nov. (Plate 2 C-H; Tables 1-3) Canthigaster coronata (non Vaillant & Sauvage) Tyler, 1967: 62, Figs. 1-5 (Seychelles, Gulf of Aqaba, and Somalia). Holotype: BPBM 13898, 85.0 mm. Red Sea, Gulf of Aqaba, Israel, off the Interuniversity Institute of Eilat, 12 m, spear, J. E. Randall, 7 June 1972. Paratypes: BMNH 1951.1.16.700, 63.9 mm. Red Sea, Gulf of Aqaba, Jordan, 18 m, fish trap, "Manihine" Expedition, N.B. Marshall, 1949/1950; HUJ 16669, 48.5 mm. Gulf of Aqaba, Israel, Eilat, North Beach, near Jordanian border, coral reef and adjacent sand, 1-4 m, rotenone, E. Clark, 5 September 1960; USNM 191710, 54.5 mm, same data as preceding; USNM 387501, 85.1 mm, northern Gulf of Aqaba, Israel, G. Kissil, 1970; NSMT-P 77636, 41.3 mm, and SAIAB 79818, 82.8 mm, same data as holotype; HUJ 9393, 104.0 mm. Gulf of Aqaba, Israel, Sinai Peninsula, Nuweiba, A. Baranes, 16 October 1976. Diagnosis. Dorsal rays 9-11 (modally 9 in the Red Sea); anal rays 8-10 (modally 9); pectoral rays 15-17 (rarely 15); gill rakers 9-10; body depth between origins of dorsal and anal fins 3.15-3.6 in SL; head length 2.2-2.5 in SL; interorbital width 4.25-4.85 in head length: gill¬ opening length 5.4-6.5 in head length; origin of anal fin below of posterior to rear base of dorsal fin, the preanal length 1.25-1.35 in SL; longest dorsal ray 2.6-2.95 in head length; colour in alcohol pale grey to pale tan with three oblique, saddle-like, brown bars on body, not extending below level of upper end of gill opening; a broad dark brown band across posterior interorbital and anterior occiput; dark brown dots and short lines on head and body, including ones radiating from eye and margins of brown saddles (also within saddles on Red Sea specimens); dark lines on snout behind mouth vertical; a dark brown spot below base of pectoral fin; a midventral brown line on head and abdomen; fins pale yellowish. In life the dark dots and lines are bright blue; the caudal fin is conspicuously marked with longitudinal blue lines or rows of small blue spots and short lines; the snout is often green dorsally. Description. Dorsal rays 9 (six paratypes with 9, and two with 10); anal rays 9 (one of 7 paratypes with 8, the rest with 9); dorsal and anal rays branched, except the first; caudal rays 11, uppermost and lower two unbranched; gill rakers 9 (8-9); vertebrae 17. Body depth between origins of dorsal and anal fins 3.4 (3.15-3.6) in SL; body moderately compressed, the width 1.4 (1.25-1.45) in depth; head length 2.45 (2.2-2.5) in SL; snout long, 1.45 (1 .4-1.7) in head length; dorsal Smithiana Bulletin 9: 3-13 8 Randall, Williams & Rocha profile of snout straight to slightly concave; eye small, the diameter 4.55 (3.8-5.75) in head length; interorbital space slightly concave, the least width 4.35 (4.25-4.85) in head length; mouth small, oval, and terminal, exposing about terminal half of upper dental plate; lips fleshy and papillose; gill-opening length 5.4 (S.4-6.5) in head length; caudal-peduncle depth 2.5 (2.5-2.95) in head length; caudal-peduncle length 2.05 (2.0-2.45) in head length. Predorsal length 1.4 (1.35-1.4) in SL; dorsal-fin base 4.95 (4.65-6.0) in head length; third dorsal ray usually longest, but adjacent rays nearly as long, 2.6 (2.7-2.95) in head length; origin of anal fin below or posterior to rear base of dorsal fin, the preanal length 1.3 (1.25-1.35) in SL; anal-fin base 5.75 (5.95-6.75) in head length; second or third anal rays usually longest, but adjacent rays nearly as long, 3.0 (3. 1-3. 4) in head length; caudal fin slightly rounded, 3.3 (3.05-3.55) in SL; upper half of pectoral fins slightly rounded, the lower half slightly emarginate; third or fourth pectoral rays usually longest, 2.9 (2.85-3.2) in head length. Skin with numerous small spinules that are directed posteriorly, each fitting into a longitudinal groove; skin smooth when stroked posteriorly, but spinules apparent when stroked anteriorly; veiy few spinules on flat ventral part of body between anal and caudal fins (only three found on holotype). Colour of holotype in alcohol pale tan with three triangular, saddle-like, brown bars on upper two-fifths of body that are progressively more oblique posteriorly, the first bar ending above base of pectoral fin, the second extending slightly more ventral and enclosing base of dorsal fin at its posterior end, and the third bar covering most of space between dorsal and caudal fins, its lower edge nearly horizontal; a transverse brown band across posterior interorbital and anterior occipital; pale space between saddle-like brown spots and transverse brown band varying in width from pupil to eye diameter; a horizontally elongate brown spot below base of pectoral fin; a midventral brown line (on a low ridge in some paratypes) extending forward from origin of anal fin, and dividing to two lines on anterior half of snout that join at base of lower lip (some paratypes with dark line extending to chin, others with line interrupted by vertical brown lines); three dark brown lines extending posteriorly from rear edge of eye, the uppermost linked by a dark brown line over upper edge of eye to a dark brown line extending anteriorly from eye; two dark brown lines directed obliquely anterior from ventral edge of eye; a dark brown line encircling lips except Table 3. Proportional measurements of the type specimens of Canthigaster cyanospilota as percentages of the standard length. Holotype Paratypes BPBM 13898 NSMT- P. 77636 HUJ 16669 USNM 191710 BMNH 1951.1.16 SAIAB 79818 USNM 387501 HUJ 9393 Standard length (mm) 85.0 41.3 48.5 54.5 63.9 82.8 85.1 104.0 ; Body depth 29.5 30.5 28.8 30.2 28.9 28.0 31.1 31.7 Body width 21.1 21.7 23.3 23.6 20.9 21.5 22.8 22.1 Head length 40.6 45.1 45.0 45.0 42.2 43.1 40.9 40.3 Snout length 28.4 27.4 26.5 30.3 26.6 29.2 27.3 28.4 Orbit diameter 8.9 11.8 10.3 9.2 9.8 8.6 8.1 7.0 Interorbital width 9.3 9.4 9.5 9.6 9.4 9.5 8.4 9.5 Gill-opening length 7.5 7.3 7.3 6.9 7.8 7.8 7.1 6.8 Caudal-peduncle depth 16.2 15.2 16.2 16.7 15.2 16.3 16.5 15.4 Caudal-peduncle length 19.8 20.6 19.3 21.0 17.7 17.6 20.3 19.4 Predorsal length 71.8 72.4 71.8 73.4 73.7 73.2 72.2 72.5 Preanal length 76.0 78.5 74.0 75.2 750 77.2 74.3 75.2 Dorsal-fin base 8.2 8.9 8.1 7.6 8.0 7.2 8.8 7.0 Dorsal-fin length 15.5 16.8 15.3 16.0 14.9 14.5 15.2 14.1 Anal-fin base 7.1 7.2 7.1 7.3 7.2 6.7 6.8 6.0 Anal-fin length 13.5 14.5 13.5 14.1 13.1 13.4 13.1 11.8 Caudal-fin length 30.4 32.6 30.7 31.8 29.1 32.0 31.8 28.1 Pectoral-fin length 14.0 14.6 14.3 14.4 14.0 13.9 14.3 12.6 Smithiana Bulletin 9: 3-13 The Canthigaster coronata species complex 9 dorsally, with parallel shorter lines behind; many small dark brown spots and short lines on head and body, including within and along edges of dark saddles; fins pale yellowish; a hemispherical brown spot centred ventrally on caudal-fin base; upper caudal-fin base with posterior end of third saddle-like brown bar. Colour of holotype when fresh shown in plate 2 C. Plates 2 D and 2 E are underwater photographs of individuals from the Gulf of Aqaba, the type locality. The small dark brown spots and short lines of preserved specimens are bright blue in life, and there are no yellow spots. The spaces between the blue lines radiating from the eye on some individuals are yellow, and the brown saddle-like bars may be yellowish along the edges. Etymology. We name this species cyanospilota from the Greek meaning blue-spotted, in reference to the numerous small bright blue markings. Remarks. We have long known that Canthigaster coronata in the Indian Ocean is different in colour from the form in the Pacific — most obviously the many blue markings and lack of yellow spots. In a book on the fishes of the Maldives, Kuiter (1998: 243) wrote, "Indian Ocean and Pacific populations slightly different and both forms occur in Bali, Indonesia." Preserved specimens can be distinguished by the blue markings that persist as dark brown dots and lines. Also, the dark saddle-like bars do not extend as far ventrally on Indian Ocean and Red Sea specimens. As mentioned, initial efforts to find some morphological or DNA difference to correlate with the colour were not successful. We finally determined that the bony interorbital space is narrower in the Indian Ocean species than in C. axiologa of the western Pacific, 8.5-9.6% SL, compared to 9.6-11.2% for C. axiologa. This is the measurement that can be taken with greatest accuracy in the species of Canthigaster. We are now confident to describe the Indian Ocean fish as the new species C. cyanospilota. We noticed from our underwater photographs that Red Sea individuals of Canthigaster cyanospilota have blue markings within the dark saddle-like bars, whereas those from the east coast of Africa and islands of the Indian Ocean (Plate 2 F-H) do not, at least as adults, and Red Sea fish tend to have more blue lines than small blue spots on the body and caudal fin than in the Indian Ocean. Also, the Red Sea specimens have modally one fewer dorsal rays than the Indian Ocean specimens and fewer average number of pectoral rays (see Table 1) . We have only eight specimens from the Red Sea, all from the Gulf of Aqaba. We found no obvious differences in morphometries, so these specimens are included with those from the Indian Ocean in Table 2. The seven specimens we have from the Somali coast of the Gulf of Aden all have 10 dorsal rays like specimens from the rest of the Indian Ocean, but all have small dark brown spots within their brown saddle-like bars, although fewer than specimens from the Gulf of Aqaba (one had only a single small spot, and another only three). Therefore, the Gulf of Aden specimens appear to be intermediate to the Gulf of Aqaba specimens and those in the rest of the Indian Ocean. Although we regard all as C. cyanospilota, we have designated only the Gulf of Aqaba specimens as type material, and list the Indian Ocean specimens below as non-types. Colour photographs of C. cyanospilota have been published (as C. coronata ) by Randall (1983: 175, upper fig., from the Red Sea); Smith & Heemstra (1986: 899, plate 140, Fig. 268.11, from Mauritius); Allen & Steene (1987: plate 134, Fig. 4, from Mauritius); Randall & Anderson (1993: 44, Plate 8, Fig. H, from the Maidive Islands); Kuiter & Tonozuka (2001: 838, Figs. D and E, from Java); and Lieske & Myers (2004: 221, lower fig., from the Gulf of Aqaba). Genetic Comparisons. In order to determine if there were any genetic differences among the three species, a 678 base-pair mitochondrial DNA fragment of the control region was sequenced for two individuals from Oahu, one from Australia (Great Barrier Reef) and two from Reunion. In addition, the control region sequences of individuals of C. axiologa and of C. rivulata from Japan were obtained from Genbank (accession numbers AP006743 and AP006744) for comparative purposes. Even though the genetic difference in the control region was small, it was well supported in a Fig. 2. Phylogenetic tree of relationships among Canthigaster species constructed using the minimum evolution (distance) criterion; maximum parsimony and maximum likelihood analyses resulted in identical tree topology. Support for the resulting tree was evaluated using 500 bootstrap replicates with the software PAUP* version 4.0b10 (D. L. Swofford, Sinauer, Sunderland, MA, 2002, unpubl.) and is shown as percentages above branches. Smithiana Bulletin 9: 3-13 10 Randall, Williams & Rocha phylogenetic analysis (Fig. 2), reinforcing the validity of the species. As pointed out by Rocha et al. (2007), species start to differentiate in morphology and colour before their neutral genes start to diverge. The pygmy angelfishes of the genus Centropyge in the Atlantic are a classic example. The three recognized species there, C. argi (Bloch), C. aurantonotus Burgess, and C. resplendens Lubbock & Sankey, maintain color differences despite no genetic difference on the same DNA region analysed in this study and some range overlap in the southern Caribbean (Bowen et al. 2006). The pattern of slow mtDNA evolution relative to colour evolution is also evident in another pair of closely related species of Canthigaster. Alfaro et al. (2007) detected almost no difference between the Hawaiian C. jactator (Jenkins) and the Indo-Pacific C. janthinoptera (Bleeker). Moreover, a genetic analysis also revealed no difference for three similar Atlantic species, C. rostrata (Bloch), C. figueiredoi Moura & Castro, and C. supramacula Moura & Castro (L. A. Rocha, unpublished data), reinforcing our hypothesis that this group undergoes fast colour/ morphological differentiation combined with slow mtDNA evolution. Non-type material examined. Somalia: Gulf of Aden, USNM 306624, 4: 70-88 mm; USNM 306628, 78 mm; USNM 306634, 67 mm; USNM 306641, 54 mm. Indian Ocean, ANSP 103616, 65 mm. Kenya: BPBM 40488, 49 mm. South Africa: KwaZulu-Natal, Sodwana Bay, SAIAB 10018, 111 mm; Aliwal Shoal, SAIAB 57318, 41 mm; SAIAB 57355, 39 mm. Reunion: BPBM 20022, 64 mm. Mauritius: BPBM 18070, 65 mm; BPBM 40515, 3: 96-103 mm. Seychelles: Mahe, ANSP 99949, 81 mm; ANSP 99950, 74 mm. ACKNOWLEDGEMENTS We thank the following for the loan of specimens: Mary Burridge of the Royal Ontario Museum, David H. Catania of the California Academy of Sciences, Terry J. Donaldson of the University of Guam, Dani Golani of the Hebrew University, Ofer Gon of the South African Institute for Aquatic Biodiversity, Keiichi Matsuura and Koichi Shibukawa of the National Museum of Nature and Science in Tokyo, Mark A. McGrouther of the Australian Museum, James McLaine of the Natural History Museum in London, and Marc H. Sabaj of the Academy of Natural Sciences of Philadelphia. Thanks are also due Robert F. Myers and Richard Winterbottom for their photographs of Canthigaster axiologa , and John L. Earle, D. Ross Robertson and Hiroyuki Tanaka for tissue samples. We are especially grateful for the gifts of specimens to the Bishop Museum from Fenton Walsh of Northern Barrier Marine Life, Queensland and Tran Thi Hong Hua of the Institute of Oceanography, Vietnam. Financial support for L. A. Rocha was provided by the HIMB-NWHI Coral Reef Research Partnership (NMSP MOA 2005-008/66882 to Brian Bowen), and the National Science Foundation (grant OCE-0453167 to Brian Bowen). The manuscript was reviewed by Gerald R. Allen and James C. Tyler. LITERATURE CITED Alfaro, M., F. Sandtini & C. D. Brock. 2007. Do reefs drive diversification in marine teleosts? Evidence from the pufferfish and their allies (Order Tetraodontiformes). Evolution 61: 2104-2126. Allen, G. R. & J. E. Randall. 1977. Review of the sharpnose puffers (subfamily Canthigasterinae) of the Indo-Pacific. Records of the Australian Museum 30(17): 475-517. Allen, G. R. & R. C. Steene. 1987. Reef Fishes of the Indian Ocean. T.F.H. Publications, Neptune City, NJ. 240 pp. Allen, G. R. & R. Swainston. 1988. The Marine Fishes of North-Western Australia. Western Australian Museum, Perth, vi + 201 pp. Anderson, R. C, J. E. Randall & R. H. Kuiter. 1998. New records of fishes from the Maidive Islands, with notes on other species. Ichthyological Bulletin 67: 20-32. Bowen, B. W., A. Muss, L. A. Rocha & W. S. Grant. 2006. Shallow mtDNA coalescence in Atlantic pygmy angelfishes (Genus Centropyge) indicates a recent invasion from the Indian Ocean. Journal of Heredity 97: 1-12 Gilbert, C. H. 1905. The aquatic resources of the Hawaiian Islands. Part II.— The deep sea fishes. Bulletin of the United States Fish Commission 23 (for 1903): xi + 713 pp. Gunther, A. 1873-1910. Andrew Garrett's Fische der Stidsee. Journal des Museum Godeffroy, parts 3, 6, 9, 11, 13, 15, 16, and 17 in vols. 2, 4 and 6, Hamburg, iv + 515 pp., 180 pis. Jordan, D. S. & B. W. Evermann. 1905. The aquatic resources of the Hawaiian Islands. Part I. The shore fishes. Bulletin of the United States Fish Commission 23 (for 1903): xxviii + 574 pp. Jordan, D. S. & A. Seale. 1906. The fishes of Samoa. Bulletin of the Bureau of Fisheries (1905) 25: 273-488. Kosaki, R. K., R. L. Pyle, J. E. Randall & D.K. Irons. 1991. New records of fishes from Johnston Atoll, with notes on biogeography. Pacific Science 45(2): 186-203. Kuiter, R. H. 1992. Tropical Reef-Fishes of the Western Pacific Indonesia and Adjacent Waters. PT Gramedia Pustake Utama, Jakarta, xiii + 314 pp. Kuiter, R. H. 1998. Photo Guide to Fishes of the Maldives. Atoll Editions, Apollo Bay, Victoria. 257 pp. Kuiter, R. H. & T. Tonozuka. 2001. Indonesian Reef Fishes. Zoonetics, Melbourne, iv + 893 pp. Laboute, P. & R. Grandperrin. 2000. Poissons deNouvelle- Caledonie. Editions Catherine Ledru, Noumea. 520 pp. Lieske, E. & R. F. Myers. 2004. Coral Reef Guide Red Sea. Smithiana Bulletin 9: 3-13 The Canthigaster coronata species complex 11 Harper Collins, London. 384 pp. Lobel, P. S. 2003. The Marine Life of Johnston Atoll. Natural World Press, Vida, OR. 128 pp. Masuda, H., K. Amaoka, C. Araga, T. Uyeno & T. Yoshino (eds.). 1984. The Fishes of the Japanese Archipelago. Vol. 1 (text: xxii + 437 pp.) and vol. 2 (plates). Tokai University Press, Tokyo. Masuda, H. & Y. Kobayashi. 1994. Grand Atlas of Life Fish Modes. Tokai University Press, Tokyo. 465 pp. (in Japanese). Matsuura, K. 1986. A new sharpnose pufferfish, Canthigaster flavoreticulata, collected from the South Pacific. Japanese Journal of Ichthyology 33(3): 223-224. Matsuura, K. 1992. A new sharpnose puffer, Canthigaster punctata (Teleostei: Tetraodontidae) from the Mascarene Submarine Ridge, Western Indian Ocean. Bulletin of the National Science Museum (Tokyo), ser. A (Zool.) 18(3): 127-130. McCulloch, A. R. 1922. Notes and illustrations of Queensland fishes. No. 3. Memoirs of the Queensland Museum 7(4): 241- 245. Myers, R. F. 1999. Micronesian Reef Fishes. Coral Graphics, Guam, vi + 330 pp. Randall, J. E. 1983. Red Sea Reef Fishes. IMMEL Publishing, London. 192 pp. Randall, J. E., G. R. Allen & R. C. Steene. 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, xx + 507 pp. Randall, J. E. & A. C. Anderson. 1993. Annotated checklist of the epipelagic and shore fishes of the Maidive Islands. Bulletin of the J.L.B. Smith Institute of Ichthyology 59: 1-47. Randall, J. E. & A. Cea Egana. 1989. Canthigaster cyanetron, a new toby (Teleostei: Tetraodontidae) from Easter Island. Revue frangaise d'Acjuariologie 15(3) (1988): 93-96. Richardson, J. 1845. The Zoology of the Voyage ofH.M.S. Sulfur, Captain Sir Edward Belcher, during the years 1836-42. Ichthyology. - Part III. Smith, Elder and Co., Comhill. 99-150 pp. Rocha, L. A. 2004. Mitochondrial DNA and color pattern variation in three western Atlantic Halichoeres (Labridae), with the revalidation of two species. Copeia 2004: 770-782. Rocha, L. A., M. T. Craig & B. W. Bowen. 2007. Phylogeography and the conservation of coral reef fishes. Coral Reefs 26: 501-512. Shen, S.-C. & P.-C. Lim. 1974. Study on the plectognath fishes - B. The family Canthigasteridae. Bulletin of the Institute of Zoology, Academia Sinica 13(1): 15-34. Smith, M. M. & P. C. Heemstra (eds.). 1986. Smiths' Sea Fishes. Macmillan South Africa, Johannesburg, xx + 1047 pp. Struhsaker, P. 1973. A contribution to the systematics and ecology of Hawaiian bathyal fishes. PhD thesis. University of Hawai'i, Honolulu, xv + 482 pp. Tyler, J. C. 1967. A diagnosis of the two transversely barred Indo-Pacific pufferfishes of the genus Canthigaster ( valentini and coronatus ). Proceedings of the Academy of Natural Sciences of Philadelphia 119(2): 53-73. Tyler, J. C. 1980. Osteology, phylogeny, and higher classification of the fishes of the Order Plectognathi (Tetraotdontiformes). NOAA Technical Report NMFS Circular 434: xi + 422 pp. Vaillant, L. L. & H. E. Sauvage. 1875. Note sur quelques especes nouvelles de poissons des lies Sandwich. Revue et Magasin de Zoologie, ser. 3, 3: 278-2871. Whitley, G. P. 1931. New names for Australian fishes. Australian Zoologist 6(4): 310-334. Smithiana Bulletin 9: 3-13 12 Randall, Williams & Rocha PLATE 1 A. Canthigaster coronata, BPBM 8497, 73 mm, 0‘ahu, Hawaiian Is. (J. E. Randall). C. Canthigaster axiologa, BPBM 7267, 54 mm, Shirahama, Japan (J. E. Randall). E. Canthigaster axiologa, Palau, ROM 79420, 33 mm (R. Winterbottom). G. Canthigaster axiologa, Lan Yu, Taiwan (J. E. Randall). B. Canthigaster coronata, 0‘ahu, Hawaiian Is. (J. E Randall). D. Canthigaster axiologa, Guam, Mariana Is. (R. F. Myers). H. Canthigaster axiologa, Bali, Indonesia (R. F. Myers). Smithiana Bulletin 9: 3-13 The Canthigaster coronata species complex 13 PLATE 2 C. Canthigaster cyanospilota, holotype, BPBM 13898, 85 mm, Gulf of Aqaba (J. E. Randall). E. Canthigaster cyanospilota, Gulf of Aqaba (J. E. Randall). G. Canthigaster cyanospilota, Mauritius (J. E. Randall). B. Canthigaster axiologa, Lady Musgrave I., Great Barrier Reef (J. E. Randall). D. Canthigaster cyanospilota, Gulf of Aqaba (J. E. Randall). F. Canthigaster cyanospilota, BPBM 20022, 64 mm, Reunion (J. E. Randall). H. Canthigaster cyanospilota, North Male Atoll, Maidive Islands (J. E. Randall). Smithiana Bulletin 9: 3-13 Cirrhitops mascarenensis, a new species of hawkfish from the Mascarene Islands, southwestern Indian Ocean John E. Randall1 and Jennifer K. Schultz2 bishop Museum, 1525 Bernice St, Honolulu, HI 96817-2704, USA 2Hawaii Institute of Marine Biology, University of Hawaii, P.O. Box 1346, Kaneohe, HI 96744, USA Received 26 April 2008, accepted 1 July 2008 Abstract. The hawkfish Cirrhitops mascarenensis is described as a new species from 12 specimens collected from 4-62 m on reefs of Mauritius (type locality) and Reunion, and is also reported from Madagascar. It has long been identified as C. fasciatus (Bennett), otherwise known only from the Hawaiian Islands. Although there is some difference in life colour of fish between the two archipelagoes, as would be expected from the vast distance separating them, it could not be linked to any definitive morphological or meristic differences, except for apparent larger size in the Hawaiian Islands (largest specimen, 91 mm SL, compared to 75 mm SL in the Mascarene Islands). However, mitochondrial DNA comparisons (cytochrome b and cytochrome c oxidase I) reveal high levels of divergence (11% and 6%, respectively), consistent with species-level designation. Keywords: Cirrhitidae, Cirrhitops, new species, Mascarene Islands INTRODUCTION The hawkfish Cirrhitops fasciatus was described by E.T. Bennett (1828: 39) as Cirrhites fasciatus (the generic name a frequent misspelling of Cirrhitus), with a type locality of Sandwich Islands (Hawaiian Islands). Cuvier in Cuvier & Valenciennes (1829: 76, pi. 47) described a new hawkfish with the same name, giving the type locality as Pondichery, India. Gunther (1860: 73) believed that Bennett's date of publication was 1829, but later in the same year that Cuvier's description of fasciatus appeared, so he provided the replacement name Cirrhites cinctus for Bennett's species. He listed four specimens in the British Museum (now the Natural History Museum): Bennett's holotype from the Hawaiian Islands (we provide its photograph here Fig. 1. Holotype of Cirrhitops fasciatus (Bennett), BMNH 1855.12.26.495, 71.5 mm, Mauritius. as Fig-. 1), one from Madagascar, one from Mauritius, and a fourth from an unstated locality, noted as "not in good state." Fowler (1938: 49) realized that the correct date for Bennett is 1828; therefore Cuvier's C. fasciatus is the junior homonym. He proposed the new name Ambly cirrhitus indicus for Cuvier's specimen. However, Randall (2001: 870) showed that Cuvier's C. fasciatus from India is the western Atlantic Ambly cirrhitus pinos Mowbray in Breder (1927), a result of locality error, and Fowler's replacement name is invalid. Smith (1951: 637) reviewed the Cirrhitidae of the western Indian Ocean. He created the new genus Cirrhitops for Cirrhites fasciatus Bennett, which he mistakenly regarded as a synonym of C. cinctus (Gunther). He also erred in writing, " Ambly cirrhites hubbardi Schultz, 1943, is almost certainly a juvenile of this species." In a review of the Cirrhitidae, Randall (1963) recog¬ nized the genus Cirrhitops for two species, C. fasciatus and C. hubbardi, the latter then known from the Phoenix Islands (type locality) and the Tuamotu Archipelago, now recorded west to Tonga in the South Pacific and the Ogasawara Islands in the North Pacific. He listed C. fasciatus from the Hawaiian Islands, Yokohama (this Japanese locality subsequently determined as an error), and the Gunther records from Mauritius and Madagascar. The first author collected and photographed Cirrhitops fasciatus in 1973 in Mauritius (Fig. 2) and Reunion. He later photographed it underwater in Mauritius (Fig. 3). There are some differences in colour Smithiana Bulletin 9: 15 - 20 16 Randall & Heemstra from the species in the Hawaiian Islands (Fig. 4), where it is known throughout the archipelago from the island of Hawaii to Midway (but not Johnston Atoll to the south). Fish in the Mascarene Islands have a fifth narrow reddish brown bar on the body before the large oval black spot on the caudal peduncle, compared to only a trace of a fifth bar on the Hawaiian fish. Also, the first four dark bars do not extend as far ventrally on the body in the Mascarene individuals, and there are large reddish blotches instead of a single narrow bar in the pale ventral interspaces. No morphological or meristic differences were found to distinguish Mascarene from Hawaiian specimens. Both have the same fin-ray counts, 49-52 lateral-line scales, 17-19 gill rakers, and the same number of preopercular serrae (increasing with growth). Over the years, no specimens of C. fasciatus have been found in the vast distance between the Mascarene Islands and the Hawaiian Islands, and C. fasciatus has continued to be regarded as a single species with a remarkable disjunct population (Randall, 2007: 202). We recently asked Daniel Pelicier, an aquarium-fish collector in Mauritius, if he could provide specimens of Cirrhitops fasciatus preserved in ethanol. He sent us two. The second author made a comparison of the DNA with fresh material of the species collected on O'ahu by the first author. Her results (Fig. 5) indicate species-level differentiation. We describe the Mascarene hawkfish here as a new species. MATERIALS AND METHODS Type specimens are deposited at the Natural History Museum, London (BMNH); Bernice P. Bishop Museum, Honolulu (BPBM); Museum National d'Histoire Naturelle, Paris (MNHN); National Museum of Nature and Science, Tokyo (NSMT), and the National Museum of Natural History, Washington, D. C. (USNM). Lengths of specimens are given as standard length (SL), measured from the median anterior point of the upper lip to the base of the caudal fin (posterior end of the hypural plate); body depth is the maximum depth; body width is measured at the base of the pectoral fins; head length (HL) from the front of the upper lip to the posterior end of the opercular membrane, and snout length from the same anterior point to the nearest fleshy edge of the orbit; orbit diameter is the greatest fleshy diameter, and interorbital width the least fleshy width; upper-jaw length is taken from the front of the upper lip to the end of the maxilla; caudal-peduncle depth is the least depth, and caudal-peduncle length the horizontal distance between verticals at the rear base of the anal fin and the caudal-fin base; lengths of spines and rays are measured from the extreme base of these elements; caudal- and pectoral-fin lengths are the length of the longest ray; caudal concavity is the horizontal distance between tips of the longest and shortest principal caudal rays; pelvic-fin length is measured from the base of the pelvic spine to the tip of the longest soft ray. The counts of lateral-line scales include one pored scale on the base of the caudal fin. The gill-raker counts contain rudiments; the raker at the angle is included in the lower-limb count. Morphometric data presented in Table 1 as percentages of the SL. Proportional measurements in the text are rounded to the nearest 0.05. Data in parentheses refer to paratypes. For genetic analyses, a 1 mm fin clip was obtained from two Mascarene specimens and three Hawaiian specimens. A single specimen of Amblycirrhitus bimacula (on display at the Waikiki Aquarium) was used as an outgroup. We were unable to obtain congeneric specimens of Cirrhitops hubbardi, due to its scarcity and remote distribution. Total genomic DNA was isolated by heating the fin clip in 50mM NaOH at 95° C for 20 minutes and neutralizing the solution with lOuL of 1M Tris, following the protocol devised by Meeker et al. (2007). We amplified a 750 base pair region of the mitochondrial cytochrome b gene using primer sequences designed by Song et al. (1998) and Taberlet et al. (1992), respectively: heavy strand 5'GTGACTTGAAAAACCACCGTTG and light strand 5' A AT AGG A AGT AT C. ATT CGGGTTTG ATG. We also amplified a 650 base pair region of the mitochondrial cytochrome c oxidase I gene (also known as the DNA barcoding gene) using primer sequences described in Ward et al. (2005): FishF2 5'TCGACTAATCATAAAGATATCGGCAC and FishR2 5'ACTTCAGGGTGACCGAAGAATCAGAA. All reactions consisted of 0.26 pM each primer, 2 mM dNTPs, 3 mM MgCl2, 0.5 units of polymerase, and 30-80ng extracted DNA in the following PCR protocol: an initial denaturation step at 94 °C for four minutes, followed by 35 cycles of 94°, 60 s; 50°, 30 s; 72° 45 s and a final extension at 72 °C for 10 minutes. The PCR product was prepared for automated sequencing using a 1:1 exonuclease: shrimp alkaline phosphatase mix (USB Corp., Cleveland OH). Sequencing in the forward and reverse direction was performed on an ABI 3730XL DNA Analyzer by the University of Hawaii Advanced Studies of Genomics, Proteomics and Bioinformatics Facility. DNA sequences were edited using Sequencher version 4.52b (Gene Codes Corporation, Ann Arbor, MI.) and are available in Genbank (accession nos. EU684131-EU684140). Pairwise sequence comparisons were used to calculate genetic distances as performed in PAUP version 4.0 (Swofford 2002). Phylogenetic trees were constructed in PAUP using maximum parsimony and maximum likelihood methods, via an exhaustive search. Amblycirrhitus bimacula sequences were used to root the tree. Confidence in tree topology was evaluated by bootstrapping over 1000 replicates (Felsenstein 1985). Smithiana Bulletin 9: 15-20 New Cirrhitops from the Mascarene Islands 17 Cirrhitops mascarenensis sp. nov. Figs. 2, 3; Table 1 Cirrhites cinctus (in part) Gunther, 1860: 73 (Mauritius and Madagascar). Cirrhitops fasciatus (non Bennett) Randall, 1963: 420 (Madagascar and Mauritius, after Gunther, 1860). Holotype. BPBM 20207, 59 mm, Mauritius, east coast, 100 m south of pass to Trou d'Eau Douce, fringing reef in 5 m, rotenone, J. E. Randall, 7 November 1973. Paratypes. BPBM 20067, 2: 37-56 mm. Reunion, west coast. Cap la Houssaye, fringing reef, 12 m, rotenone, J. E. Randall, 23 October 1973; MNHN 2008-1189, 57 mm, and NSMT-P 79975, 56 mm, same data as preceding; USNM 349784, 56 mm, Mauritius, west coast, Baie de la Petite Riviere, off Albion Fisheries Research Center, 20°12'30"S, 57°23'E, 10-12 m, P. C. Heemstra, D. G. Smith, and A. C. Gill, 26 April 1995; USNM 349785, 55 mm, same locality, except 57°23'30"E, 4-8 m, A. C. Gill, D. G. Smith, M. J. Smale, B. Galil, and P. Clark, 4 May 1995; USNM 349786, 59 mm, Mauritius, west coast. Flic en Flac, 30 m north of pass, 20°16' S, 57°22'E, 4-10 m, P. C. Heemstra, A. C. Gill, D. G. Smith, and M. J. Smale, 5 May 1995; USNM 349787, 2: 51-64 mm, Mauritius, southwest coast, Le Morne (Passe de l'Ambulante), 20°26"10"S, 57°17,36"E, 25-26 m, P. C. Heemstra, A. C. Gill, D. G. Smith, M. J. Smale, P. Clark, and B. Galil, 18 May 1995; BPBM 40889, 53 mm, Mauritius, Rampart Serpent, off Belle lie, 25 m, D. Pelicier, hand net, 8 May 2007; BPBM 40890, 75 mm, Mauritius, off Womar, Chameau la Pirogue, 62 m, hand net, D. Pelicier, 15 January 2008. Fig. 2. Holotype of Cirrhitops mascarenensis, BPBM 20207, 59 mm SL, Mauritius. Diagnosis. Dorsal rays X,14; anal rays 111,6; pectoral rays 14 (rarely 15), the lower 6 unbranched and thickened; gill rakers 4-5 + 13-14; lateral-line scales 49-52; scales above lateral line to origin of dorsal fin 4; serrae on margin of preopercle 14-24 (increasing, in general, with growth); caudal fin slightly emarginate; red dorsally, white ventrally, with five slightly oblique, reddish brown bars on body below dorsal fin; a large oblong black spot anteriorly on caudal peduncle; a dark brown spot on opercle; ventral half of body with brownish red blotches of eye to pupil size; largest specimen, 75 mm SL. Description. Dorsal-fin rays X,14, all soft rays branched; anal-fin rays 111,6, the soft rays branched except first; pectoral-fin rays 14 (15 on one side of one paratype), the uppermost and lower 6 unbranched; pelvic-fin rays 1,5; principal caudal-fin rays 15, the middle 13 branched; upper and lower procurrent caudal-fin rays 13 or 14, the posterior 2 segmented; lateral-line scales 50 (49-52); scales above lateral line to origin of dorsal fin 4; scales below lateral line to origin of anal fin 12; oblique rows of large scales on cheek 5; circumpeduncular scales 25; gill rakers 5 + 14 (4-5 + 13-14); pseudobranchial filaments 9; branchiostegal rays 6; vertebrae 26. Body depth 2.95 (2. 9-3. 3) in SL; body compressed, the width 2.35 (1.95-2.3) in body depth; head length 2.7 (2. 7-2. 8) in SL; snout length 3.15 (3. 1-3.3) in HL; orbit diameter 4.15 (3.4-4.35) in HL; interorbital space distinctly concave, the least width 7.2 (6.8-7.45) in HL; caudal-peduncle depth 2.7 (2.65-3.0) in HL; caudal- peduncle length 1.8 (1.75-1.9) in HL. Mouth terminal and oblique, forming an angle of about 20° to horizontal axis of body; maxilla reaching between verticals at anterior edge of orbit and centre of eye, the upper-jaw length 2.65 (2.6-2 .7) in HL; upper jaw with an outer row of stout conical teeth that curve slightly medially and posteriorly, the three at corner of jaw largest (about one-third pupil diameter in length), with a pair of smaller teeth in symphyseal gap; remaining teeth of outer row continuing progressively shorter to end of jaw; a broad band of villiform teeth behind anterior conical teeth, progressively narrower posteriorly; lower jaw with an outer row of stout conical teeth, four or five nearly half way back in jaw much larger (the largest as long as largest upper tooth); a broad band of villiform teeth anteriorly in lower jaw behind conical teeth, narrowing and ending medial to large conical teeth on side of jaw; vomer and palatines with incurving villiform teeth in two irregular rows, those on vomer in a broad V-shape. Tongue strongly pointed, the tip nearly reaching vomerine teeth when mouth closed. Gill rakers moderately long, the longest at angle as long as longest gill filament of first row. Opercle ending posteriorly in a flat pointed spine, the tip forming an angle of about 70°; opercular membrane extending a pupil diameter posterior to spine; edge of preopercle broadly rounded, the upper half with 24 (14-24) coarse serrae, the number increasing, in general, with growth; scale-like free end of posttemporal with 5 (4-6) small serrae. Anterior nostril before upper edge of pupil about one-third distance to base of upper lip, consisting of a short membranous tube with a posterior flap ending in about 8 long cirri that extend well beyond posterior nostril when laid back; posterior nostril oval, with a short rim, one nostril diameter behind and slightly Smithiana Bulletin 9: 15-20 18 Randall & Heemstra medial to anterior nostril. Scales cycloid and adherent; scales on nape extending forward to above posterior margin of orbit; scales on cheek in straight oblique rows; scales on opercle embedded, small anteriorly, becoming as large as body scales posteriorly; scales ventrally on head small and embedded; no scales on snout or maxilla; small scales basally on fins, progressively smaller distally, those on caudal fin reaching at least two-thirds distance to posterior margin of fin (scales on fins easily lost). Origin of dorsal fin above opercular spine, the predorsal length 2.8 (2.8-2. 9) in SL; dorsal spines with a tuft of 7-9 slender cirri (as few as 4 on small paratype) extending dorsally from distal end of fin membrane behind spine tip; first dorsal spine 4.3 (4.2-4.65) in HL; sixth dorsal spine usually longest, but fifth and seventh spines subequal, 2.1 (2.0-2.2) in HL; first dorsal soft ray longest, 1.6 (1.65-1.85) in HL; origin of anal fin below base of second to third dorsal soft ray, the preanal length 1.45 (1.5-1.55) in SL; first anal spine 2.7 (2.7-3.0) in HL; second anal spine clearly longest, 1.85 (1.65- 1.85) in HL; second anal soft ray longest, 1.7 (1.5-1. 7) in HL; caudal-fin length (fin tips broken in holotype and largest paratype) 1.35-1.5 in HL; caudal concavity 9.0-13.7 in HL; lower five pectoral rays thickened, the tenth to twelfth abruptly longer, the tenth or eleventh longest, 2.95 (2.6-2.95) in SL; pelvic fins below base of fifth dorsal spine, the prepelvic length 2.3 (2.3-2.4) in SL; first pelvic soft ray longest, reaching or extending slightly posterior to anus, 1.65 (1.45-1.7) in HL. Table 1. Proportional measurement of type specimens of Cirrhitops mascarenensis as percentages of the standard length. Holotype Paratypes BPBM 20702 BPBM 20067 USNM 349787 BPBM 20067 MNHN 08-1189 USNM 349786 USNM 349787 BPBM 40890 Standard length (mm) 59 37 51 56 57 59 64 75 Body depth 33.7 30.2 32.4 33.3 31.7 32.5 32.3 34.7 Body width 14.3 13.8 15.5 14.3 15.7 15.6 15.3 15.4 Head length 36.7 36.7 36.9 37.2 36.8 37.1 37.2 35.9 Snout length 11.7 11.1 11.6 11.6 11.9 12.0 11.8 10.8 Orbit diameter 8.9 10.8 9.6 9.0 9.1 9.0 8.7 8.3 Interorbital width 5.1 5.4 5.1 5.3 5.1 5.0 5.4 5.3 Upper -jaw length 13.9 13.6 13.9 13.7 14.0 14.2 14.1 13.9 Caudal-peduncle depth 13.5 13.4 12.4 12.6 12.3 12.3 12.4 13.6 Caudal-peduncle length 20.3 21.2 20.7 20.5 19.3 20.2 19.3 19.4 Predorsal length 35.4 34.9 34.8 35.6 34.9 34.4 34.3 34.7 Preanal length 68.4 64.6 65.6 66.3 65.4 66.3 65.5 66.6 Prepelvic length 43.6 41.7 43.0 42.4 43.2 43.5 42.5 43.7 Dorsal-fin base 61.7 57.9 57.5 60.2 61.2 57.8 58.1 61.9 First dorsal spine 8.5 8.4 8.8 8.2 8.5 8.4 8.0 8.0 Longest dorsal spine 17.5 18.2 18.0 16.9 17.1 17.0 17.2 16.9 Longest dorsal ray 23.0 22.4 22.2 21.7 21.5 20.0 22.7 23.4 Anal-fin base 16.0 16.2 16.3 16.4 16.9 16.7 16.8 16.6 First anal spine 13.6 13.3 13.5 12.3 13.5 13.6 12.5 12.4 Second anal spine 20.1 20.9 22.1 21.5 19.9 22.0 21.8 20.0 Longest anal ray 21.4 23.1 23.5 21.7 23.2 21.9 22.3 23.9 Caudal-fin length broken 27.1 27.0 24.7 26.3 27.3 24.4 broken Pectoral-fin length 33.6 38.4 37.6 34.0 35.2 35.9 36.4 34.6 Pelvic spine 15.6 16.3 16.9 14.6 14.7 15.5 15.2 15.0 Pelvic-fin length 22.1 25.1 25.2 21.8 23.3 23.2 22.2 23.6 Smithicma Bulletin 9: 15-20 New Cirrhitops from the Mascarene Islands 19 Colour of holotype in alcohol pale yellowish brown with five, slightly oblique, faint dark bars below dorsal fin that extend about half way down on body; first dark bar merging dorsally with dark area on nape; pale interspaces on body about half width of dark bars; a large oblique, oval, darker brown spot anteriorly on caudal peduncle; a dark brown spot nearly as large as eye posteriorly on opercle; fins pale yellowish. Fig. 3. Underwater photograph of Cirrhitops mascarenensis, Mauritius. Paratypes collected from below about 20 m have red bars in life that are lost in alcohol; however, the black spot on the caudal peduncle and the dark brown spot on opercle persist in preserved specimens. The paratypes of BPBM 40889, BPBM 40890, and USNM 349787 were collected deeper than 25 m, and all are uniformly pale in alcohol except for the opercular and peduncular black spots. Colour of holotype when fresh as in Fig. 2. The underwater photograph of Fig. 3 shows the life colour. We compared Mascarene and Hawaiian Cirrhitops specimens at two mitochondrial genes: a 741 base pair region of the cytochrome b gene and a 643 base pair region of the cytochrome c oxidase I gene. - — - Amblyeirrhitus bimacula Hawaii (2) 99/100 100/100 Hawaii (1) Cirrhitops spp. Mauritius (1) Cytochrome b analyses revealed 86 variable nucleotide sites of which 80 were parsimony informative, with a transition: transversion ratio of 5:1. There were two haplotypes in three Hawaiian specimens and two Mascarene haplotypes. Pairwise genetic distances between locations ( d = 0.11) were 15 to 100 times greater than within location distances ( d = 0.001, 0.007 Hawai'i and Mauritius respectively). Cytochrome c oxidase I analyses were similarly robust. Of 41 variable nucleotide sites, 39 were parsimony informative, with a transition: transversion ratio of 12:1. There were two haplotypes in three individuals collected from Hawai'i and two Mascarene haplotypes. Pairwise genetic distances between locations ( d = 0.06) were lower than observed at the cytochrome b gene, but at least an order of magnitude greater than within location distances (d = Q.0016). Genetic distances between Cirrhitops and the outgroup, Amblyeirrhitus bimacula (cytochrome b, d = 0.20; cytochrome oxidase, d = 0.18, 0.21 Hawaii and Mauritius, respectively) were high. Phylogenetic analyses converged on a single tree topology for both mitochondrial markers and using two methods of analysis (Fig. 5). High bootstrap values (99-100) reflect strong differentiation between Mascarene and Hawaiian specimens. Fig. 4. Underwater photograph of Cirrhitops fasciatus, 0‘ahu, Hawaiian Islands. Material of Cirritops fasciatus examined. Hawaiian Islands, O'ahu: BPBM 349, 87 mm; BPBM 1806-1808, 3: 70-80 mm; BPBM 2111-2113, 3: 74-80 mm; BPBM 4128, 5: 77-91 mm; BPBM 6348, 6: 33-78 mm; BPBM 6454, 69 mm; BPBM 8899, 2: 33-35 mm; BPBM 40485. 81 mm. Hawai'i: BPBM 25913, 31 mm. Nehoa: BPBM 9163, 33 mm. Midway: BPBM 34818, 2: 56-81 mm. Etymology. This species is named Cirrhitops mascaren¬ ensis for its occurrence in the Mascarene islands of Mauritius and Reunion. L Mauritius (1) , y> — — — 0.05 substitutions/site Fig. 5. Maximum likelihood phylogenetic tree of the cytochrome b gene. Number of specimens in parentheses. Numbers on branches reflect bootstrap support for maximum parsimony/ maximum likelihood analyses. Remarks. Our record of Cirrhitops mascarenensis from Madagascar is the listing by Gunther (1860: 73) as Cirrhites cinctus, an unnecessary replacement name. Gunther's specimen, 71 mm SL, collected by J. E. Gray, was found unregistered by James Maclaine in the Natural History Museum, London. It was assigned the number BMNH 2008.4.14.1. A photograph of the specimen was readily Smithiana Bulletin 9: 15-20 20 Randall & Heemstra identified by us as C. mascarenensis. This species was not reported from Rodrigues, the most eastern of the Mascarene Islands, in a preliminary checklist of the fishes of the island (Heemstra et al., 2004), but it might be expected from there. Gunther regarded his specimens from the Madagascar and Mauritius as the same species as Bennett's holotype of Cirrhitops fasciatus from the Hawaiian Islands, and he was followed by Randall (1963) in a review of the family. Although we later noticed a difference in life colour in the two widely separated populations, no morphological differences were found, and the ranges in lateral-line scale and gill- raker counts are the same. However, the DNA results are unequivocal as two species. There is reciprocal monophyly and high sequence divergence between the Mascarene and Hawaiian specimens. Eleven percent divergence at the mitochondrial cytochrome b gene, which has a divergence rate of 2% per million years as calibrated in multiple fish species (Bowen et al., 2001), constitutes approximately 5.5 million years of reproductive isolation. A barcoding survey of 200 fish species performed by Ward et al. (2005) reports an average of 0.39% divergence within species and 9.9% divergence within genera. We find 0.16% divergence within species and 6.2% divergence between Mascarene and Hawaiian specimens at the barcoding gene (cytochrome c oxidase I). Therefore, genetic analyses support species-level differentiation. Based on existing museum material, the Hawaiian species is larger. The largest of our 14 type specimens of Cirrhitops mascarenensis measures 75 mm SL. Twelve of our 26 Bishop Museum specimens of C. fasciatus are larger than 75 mm, the largest 91 mm SL. ACKNOWLEDGEMENTS We are indebted to Daniel Pelicier for providing the specimens of Cirrhitops mascarenensis from Mauritius for our DNA analysis; Gordon Tribble for logistic support in obtaining fresh material of C. fasciatus on O'ahu; Charles Delbeek of the Waikiki Aquarium for tissue sample of our outgroup species, Amblycirrhitus bimacula; James Maclaine of the Natural History Museum in London for data of Bennett and Gunther specimens of C. mascarenensis and Phil Hurst for their photographs (copyright Natural History Museum, London); Jeffrey T. Williams for the loan of specimens from the National Museum of Natural History; and Ofer Gon for data on specimens in the fish collection of the South African Institute for Aquatic Biodiversity. Funding for DNA sequencing was provided by the U. S. National Science Foundation (IGE05-49514 to JKS via B.A. Wilcox). The manuscript was reviewed by Gerald R. Allen, Philip C. Heemstra and Helen A. Randall. LITERATURE CITED Bennett, E. T. 1828. Observations on the fishes contained in the collection of the zoological society. On some fishes from the sandwich islands. Zoological Journal 4 (13): 31-42. Bowen, B. W., A. L. Bass, L. A. Rocha, W. S. Grant & D. R. Robertson. 2001. Phylogeography of the trumpetfish ( Aulostomus spp.): ring species complex on a global scale. Evolution 55: 1029-1039. Breder, C. M., Jr. 1927. Scientific results of the first oceanographic expedition of the "Pawnee" 1925. Fishes. Bulletin of the Bingham Oceanographic Collection, Yale University 1(1): 1-90. Cuvier, G. & A. Valenciennes. 1829. Histoire Naturelle des Pozssozzs,vol.3.ChezF.G.Levrault,Paris.xxvii+500pp. FelsensteinJ. 1985. Confidence limits on phylogenies: an approachusingthebootstrap.Euo/zzfzo;z39(4):783-791. Fowler, H . W. 1 938. Descriptions of new fishes obtained by the United States Bureau of Fisheries steamer "Albatross," chiefly in Philippines seas and adjacent waters. Proceedings of the United S tates National Museu m 85: 31-135. Gunther, A. 1860. Catalogue of the Acanthopterygian Fishes in the Collection of the British Museum. British Museum, London, xxi + 548 pp. Heemstra, E., P. Heemstra, M. Smale, T. Hooper & D. Pelicier. 2004. Preliminary checklist of coastal fishes from the Mauritian island of Rodrigues. Journal of Natural History 38: 3315-3344. Meeker, N. D., S. A. Hutchinson, L. Ho & N. S. Trede. 2007. Method for isolation of PCR-ready genomic DNA from zebrafish tissues. BioTechnicjues 43: 610-614. Randall, J. E. 1963. Review of the hawkfishes (family Cirrhitidae). Proceedings of the United States National Museum 114: 389-451. Randall, J. E. 2001. Hawkfish Amblycirrhitus indicus Fowler, 1938: a junior synonym of Amblycirrhitus pinos (Mowbray, 1927), the result of locality error. Copeia 2001 (3): 870-871. Randall, J. E. 2007. Reef and Shore Fishes of the Hawaiian Islands. Sea Grant College Program of the University of Hawaii, Honolulu, xvii + 546 pp. Smith, J. L. B. 1951. The fishes of the family Cirrhitidae of the western Indian Ocean. Annals and Magazine of Natural History, ser. 12, 4: 625-652. Song, C. B., T. J. Near & L. M. Page. 1998. Phylogenetic relations among percid fishes as inferred from mitochondrial cytochrome b DNA sequence data. Molecular Phylogenetics and Evolution 10: 343-353. Swofford, D. L. 2002. PAUP: phylogeny analysis using parsimony Version 4. Sinauer Associates, MA. 144 pp. Taberlet, P., A. Meyer & J. Bouvet. 1992. Unusually large mitochrondrial variation in populations of the blue tit, Parus caeruleus. Molecular Ecology 1: 27-36. Ward, R. D., T. S. Zemlak, B. H. Innes, P. R. Last & P. D. N. Hebert. 2005. Barcoding Australia's fish species. Philosophical Transactions of the Royal Society of London, ser. B, no. 360: 1847-1857. Smithiana Bulletin 9: 15-20 Ammodytoides xanthops, a new sp ecies of sandlance (Perciformes: Ammodytidae) from Mozambique John E. Randall1 and Phillip C. Heemstra2 bishop Museum, 1525 Bernice St, Honolulu, HI 96817-2704, USA 2South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown, South Africa Received 30 June 2008, accepted 20 September 2008 Abstract. The sandlance Ammodytoides xanthops is described as a new species from 19 specimens, 104-122 mm SL, collected by trawl off Mozambique from 26-62 m. It is distinct from the other species of the genus in the following combination of characters: dorsal rays 48 or 49; anal rays 23 or 24; pectoral rays 15 or 16; lateral-line scales 106-112; no small scales dorsally on opercle; vertebrae 57-59; body depth 10.0-11.7% SL; eye diameter 3.3-3.5% SL; a blackish posterior border on caudal fin, broader toward lobe tips; a series of 6 or 7 black spots at edge of dorsal fin; no black dots in fins; interorbital and most of head anterior to eye yellow in life. Keywords: Ammodytidae, Ammodytoides, new species, Mozambique INTRODUCTION The small slender fishes of the family Ammodytidae, popularly known as sandlances, feed in aggregations on zooplankton over open sand bottom. Adaptations for zooplankton feeding include a protrusible premaxilla, relatively short snout for close binocular vision, reduced to absent dentition, and long gill rakers. When threatened, they form compact schools that swim at remarkable speed. Their specializations for swift swimming include their streamlined elongate body, protective adipose eyelid, forked caudal fin, and low dorsal and anal fins that fit into a groove. Their eyes near the centre of the head enable them to view predators above and below. As a last resort to escape a predator, they dive into the sand, aided by their pointed projecting lower jaw and having their fins fold into grooves. As scuba divers, we have known the frustration of trying to collect sandlances. The first author shot an explosive- tipped -spear at the sand near a school, expecting the fish to be killed or shinned. The result was only an increase in speed. Later it was determined that sandlances lack a swim bladder (fishes with this gas-filled sac are vulnerable to an explosion). The Ammodytidae consists of eight genera and 25 species (Ida et al. 1994; Collette & Randall 2000; Randall & Earle 2008). In addition to the characters mentioned above, they have small cycloid scales partly fused to form oblique scale rows, no spines in the fins, a long dorsal fin, relatively short anal fin, and no pelvic fins (except for one species with rudimentary pel vies). The genus Ammodytes Linnaeus, from temperate and cooler seas of the North Atlantic and North Pacific, contains six species. It was the largest genus, but recent discoveries of new species of Ammodytoides Duncker & Mohr from the Indo-Pacific region have made it the largest genus, with eight species. Bean (1895) described the first species of Ammody¬ toides as Bleekeria gilli from an unknown locality in the Pacific Ocean. Collette & Robertson (2001) redescribed the species and determined its range from Baja California to Ecuador and Islas Galapagos. They also showed that Ammodytes lucasanus Beebe & Tee-Van 1938 is a junior synonym. McCulloch & Waite (1916) described the second species as Bleekeria vaga from a single specimen of unknown habitat from Lord Howe Island. Duncker & Mohr (1939) concluded that this species does not belong in Bleekeria and proposed the genus Ammodytoides, with B. vaga as the type species. Unaware of Ammodytoides, Smith (1957) named the third species Bleekeria renniei from the east coast of South Africa at Fekwini (33°25'S) from three specimens found on the beach after the onset of cold weather. Pietsch & Zabetian (1990) published an osteological study of the family Ammodytidae, featuring Embolichthys mitsukurii (Jordan & Evermann). Ida & Randall (1993) described Ammodytoides kimurai as a fourth species of the genus from six specimens collected in the Ogasawara Islands. The fifth, A. pylei, was described by Randall et al. (1994) from 10 specimens from the Hawaiian Islands; these authors also provided information on feeding and spawning. Ida et al. (1994) revised the generic classification of the family, adding two new genera and recognizing Bleekeria for three species, B. kallolepis Gunther, B. mitsukurii, and B. viridianguilla Fowler. Smithiana Bulletin 9: 21- 25 22 Randall & Heemstra Collette & Randall (2000) described A. leptus as a sixth species of the genus from 23 specimens taken at Pitcairn Island in the South Pacific. Collette in Carpenter & Niem (2001) followed Ida et al. (1994) in recognizing Bleekeria as distinct from Ammodytoides by the presence of teeth in the jaws and the continuous subocular sensory canal. Randall & Earle (2008) added two new species, A. idai from seven specimens collected in the D'Entrecasteaux Islands, Papua New Guinea, and A. praematura from one specimen from the Chagos Archipelago. We suspect that more species of these elusive fishes remain to be discovered. The second author and Elaine Heemstra participated in a recent expedition in the western Indian Ocean aboard the R/V Fridtjof Nansen. On 16 October 2007 they collected a surprising 18 specimens of a species of Ammodytoides in one otter trawl haul in 26-28 m at hours 0715-0742 off the coast of Mozambique. The specimens are ripe males and females, the ova of the females fully hydrated. The Hawaiian A. pyle is known to commence spawning 1.5 hours before sunset. It might also spawn at the same light level in early morning. Ordinarily, we would expect species of this genus to escape an advancing trawl by either speed or taking refuge in sand. While spawning, however, they swim higher in the water column and would be more vulnerable to capture by trawl. On 19 October an additional specimen was collected by trawling in 62 m. We describe this species here, following a key to the species of Ammodytoides. MATERIALS AND METHODS Type specimens are deposited in the Australian Museum, Sydney (AMS); Bernice P. Bishop Museum, Honolulu (BPBM); California Academy of Sciences, San Francisco (CAS); Museum National d'Histoire Naturelle, Paris (MNHN); National Museum of Nature and Science, Tokyo (NSMT); Royal Ontario Museum, Toronto (ROM); South African Institute for Aquatic Biodiversity, Grahamstown (SAIAB); and the National Museum of Natural History, Washington, D.C. (USNM). Lengths recorded for specimens are standard length (SL), measured from the front of the upper lip in the median plane to the midbase of the caudal fin (end of hypural plate). Body depth is the maximum depth from the base of the dorsal fin to the ventralmost edge of the abdomen, and body width is the greatest width. Head length (HL) is taken from the front of the upper lip to the posterior end of the opercular membrane. Orbit diameter is the maximum fleshy diameter (measured to edges of the adipose eyelid), and interorbital width is the least fleshy width. Caudal-peduncle depth is the least depth, and caudal-peduncle length the horizontal distance between verticals at the rear end of the anal fin and the caudal-fin base. Lengths of dorsal and anal rays are measured from tip to the body contour (not to their bases within the groove into which the fins fold). Caudal-fin length is measured horizontally from the caudal-fin base to a vertical at the tip of the longest ray; caudal concavity is the horizontal distance between verticals at the tips of the longest and shortest caudal rays. Gill-raker counts were made on the first gill arch and include rudiments; the raker at the angle is contained in the lower-limb count. Vertebral counts include the hypural. Data in parentheses in the description of the new species refer to paratypes. Proportional measurements in the text are ratios with the standard length, body depth, and head length, rounded to the nearest 0.05. KEY TO THE SPECIES OF AMMODYTOIDES la Dorsal rays 48-53; lateral-line scales 104-118 . . 2 lb. Dorsal rays 44-48; lateral-line scales 85-107 . . 7 2a. Body very slender, the depth 8. 6-9.5% SL; vertebrae 61-63; dorsal rays 50-53; no dark markings on fins (Pitcairn Island) . leptus 2b. Body less slender, the depth 9.5-11.7% SL; vertebrae 56-61 ; dorsal rays 48-51 ; dark markings on fins present or absent . 3 3a. No small scales dorsally on opercle . 4 3b. Two to four small scales dorsally on opercle (may be embedded) . 5 4a. Eye diameter 2.8-3.3% SL; a broad blackish zone at base and middle of each caudal lobe; vertebrae 59-61; lateral-line scales 104-109 (Ogasawara Islands) . kimurai 4b. Eye diameter 3.3-3. 5% SL; a broad blackish zone on outer third to half of each caudal-fin lobe; vertebrae 57-59; lateral-line scales 106-112 (Mozambique) . xanthops, new species 5a. A curved blackish submarginal bar across each caudal-fin lobe; numerous black dots in dorsal and anal fins; vertebrae 56-58 (southeastern Africa) . renniei 5b. No blackish submarginal bar across each caudal lobe (caudal lobe tips may be broadly blackish); no black dots in dorsal and anal fins; vertebrae 58-60 . 6 6b. Lateral-line scales 109-116; vertebrae 59-60; pectoral-fin length 8.4-9. 2% SL; interorbital width 3.5-4. 1% SL; a row of prominent blackish spots at edge of dorsal fin, and caudal fin with a broad dusky posterior margin (Hawaiian Islands) . pylei 6b. Lateral-line scales 107; vertebrae 58; pectoral-fin Smithiana Bulletin 9: 21-25 New Ammodytoides species 23 length 10.0% SL; interorbital width 4.3% SL; no dark markings in fins (one specimen. Lord Howe Island) . vagus 7a. Head length 25.4=27.8% SL; predorsal length 25.1- 26.9% SL; pectoral-fin length 9.9-11.1% SL; lateral-line scales 85-98; no small scales dorsally on opercle (Baja California to Ecuador and Islas Galapagos) . gilli 7b. Head length 23.9-25.3% SL; predorsal length 23.2- 25.3% SL; pectoral-fin length 9. 0-9. 6% SL; lateral-line scales 103-107; two to four small scales dorsally on opercle . 8 8a. A row of about 10 black spots at margin of dorsal fin except posteriorly; caudal fin with a dusky posterior margin that broadens toward lobe tips, at least in males; body width 8. 0-8. 8% SL; longest dorsal ray 5.2— 5.6% SL; longest anal ray 5. 9-6. 7% SL (Papua New Guinea) . idai 8b. No black spots at margin of dorsal fin; caudal fin with a curved blackish bar across each lobe; body width 6.9% SL; longest dorsal ray 6.9% SL; longest anal ray 8.2% SL (one 61-mm specimen, Chagos Archipelago) . praematura Fig. 1. Holotype of Ammodytoides xanthops, SA1AB 80762, 120 mm SL, Mozambique (photo by P.C. Heemstra). Ammodytoides xanthops, sp. nov. Fig. 1; Table 1 Holotype. SAIAB 80762, male, 120 mm SL, Mozambique, 20°33.3,S, 35°47.6'E-20o34,8'S, 35°47.6'E, 62 m, otter trawl, R/V Fridtjof Nansen Station 75, 19 October 2007. Paratypes. AMS 1.44650-001, 121 mm; BPBM 40904, 4: 106-122 mm; CAS 227043, 114 mm; MNHN 2008-1232, 110 mm; NSMT- P 91026, 118 mm; ROM 83933, 112 mm; SAIAB 80761, 7: 104-122 mm; USNM 393562, 2: 107- 121 mm, all from Mozambique, 22°34.0'S, 35°34.0'E- 22°35.4'S, 35°34.1'E, 26-28 m, otter trawl, R/V Fridtjof Nansen Station 62, 16 October 2007. Diagnosis. Dorsal rays 48 or 49; anal rays 23 or 24; pectoral rays 15 orl6 (usually 15); lateral-line scales 106-112; no small scales dorsally on opercle; gill rakers 5-6 + 22-25; vertebrae 57-59; body depth 10.0-11.7% SL; eye diameter 3. 3-3. 5% SL; colour when fresh dark purplish gray dorsally, pale silvery blue on sides and ventrally; interorbital and most of head anterior to eye yellow; front of snout and tip of lower jaw dusky; a series of six or seven black spots at edge of dorsal fin; no black dots in fins; caudal fin with a broad blackish posterior border; largest specimen, 122 mm SL. Description. Dorsal rays 48 (48 or 49), the first two rays unbranched; anal rays 23 (23 or 24), the first three rays unbranched; pectoral rays 16 (15 or 16), the upper two and lowermost rays unbranched: no pelvic fins; principal caudal rays 15, the middle 13 branched; upper and lower procurrent caudal rays about 15, the posterior three segmented; lateral line incomplete, the tubed scales 109 (106-112) + 4 (3-6) pored (non-tubed) scales to caudal-fin base; predorsal scales 11; gill rakers 6 + 24 (5 or 6 + 22-25); branchiostegal rays 7; vertebrae 58 (57-59); predorsal vertebrae 6; postdorsal vertebrae 10; vertebrae posterior to anal fin 8; first two dorsal pterygiophores in space between fourth and fifth neural spines; third dorsal pterygiophore in following space, next two pterygiophores in space between fifth and sixth neural spines, and remaining pterygiophores single in a space. Body depth 10.0 (8. 5-9. 6) in SL; body width 1.45 (1.2-1. 5) in body depth; head pointed, its length 4.25 (4.15-4.3) in SL: snout length 3.25 (3.2-3.45) in HL; eye diameter (maximum to edges of adipose eyelid) 7.15 (6.85-7.2) in HL; interorbital width 5.85 (5.65-5.9) in HL; caudal-peduncle depth 5.0 (4.95-5.4) in HL; caudal- peduncle length 2.3 (2. 2-2. 4) in HL. Lower jaw strongly projecting, sharply pointed, ending in a cartilaginous knob; maxilla narrowing posteriorly, reaching slightly posterior to a vertical at anterior edge of eye, the upper-jaw length 2.8 (2.8-3. 1) in head length; premaxilla protrusible; mouth slightly oblique, forming an angle of about 15° to horizontal axis of body; no teeth in jaws or on palate. Gill opening broad, the dorsal end at level of upper edge of eye, the anterior end reaching a vertical through centre of eye. Gill membranes not attached to isthmus. Gill rakers slender, the longest as long as gill filaments. Nostrils small, dorsally on snout, the anterior a narrow, oblique aperture with a slight dorsoposterior rim, midway between a vertical at fleshy edge of orbit Smithiana Bulletin 9: 21-25 24 Randall & Heemstra and tip of lower jaw; posterior nostril smaller, less oblique, without a rim, and nearly directly behind anterior nostril; intemarial distance and distance between posterior nostrils equal to pupil diameter. Cephalic sensory canals and pores essentially the same as illustrated for Ammodytoides kimurai Ida & Randall (1993: fig. 2) and A. pylei Randall, Ida & Earle (1994: fig. 2 A); subocular canal interrupted below eye. No spine on opercle; margins of opercular bones smooth; opercular flap extending to or slightly posterior to a vertical at base of lower pectoral-fin rays. Scales on body small, thin, cycloid, and joined in straight oblique rows with only posterior margin free (except above lateral line where upper and lower edges of scales more evident); head naked; scales dorsally on nape extending slightly anterior to a vertical at upper free end of preopercle; tubed scales of lateral line ascending from upper end of gill opening to within a pupil diameter of origin of dorsal fin, passing posteriorly parallel to dorsal contour of body, and ending on caudal peduncle three to six scale rows before base of caudal fin (these posterior scales with a few tiny pores); fins naked except for a sheath of specialized scales extending out on caudal rays about three-fourths length of fin. Origin of dorsal fin above twelfth lateral-line scale, the predorsal length 4.15 (4. 1-4.4) in SL; first dorsal ray short, 6.9 (5.95-8.0) in HL; longest dorsal ray (sixth- from-last in holotype) 4.15 (4.0-4.4) in HL; first anal ray short, slender, and closely spaced to second ray 9.4 (6.6-9.45) in HL; third or fourth anal ray longest, 3.55 (3.3-3. 7) in HL; caudal fin forked, 1.9 (1.85-2.0) in HL; caudal concavity 3.9 (3. 7-4.0) in HL; pectoral fins short and pointed, the third or fourth ray longest, 2.45 (2.4-2.55) in HL. Colour of holotype in alcohol: light grayish brown, paler ventrally; head anterior to posterior edge of preopercle translucent grey, the light brown brain visible; dorsal half of snout from posterior nostrils forward blackish, as well as tip of lower jaw; fins Table 1. Proportional measurements of type specimens of Ammodytoides xanthops as percentages of the standard length. Holotype Paratypes SAIAB 80762 SAIAB 80761 SAIAB 80761 SAIAB 80761 SAIAB 80761 SAIAB 80761 SAIAB 80761 SAIAB 80761 Standard length (mm) 120 104 106 109 113 117 120 122 Sex male male female female male female male female Body depth 10.0 10.4 11.3 10.5 11.5 11.7 11.6 10.5 Body width 6.9 8.5 8.5 8.4 8.0 8.5 8.5 7.1 Head length 23.5 23.7 24.0 24.2 23.2 23.7 23.3 23.6 Snout length 7.2 7.2 7.1 7.0 7.2 7.3 7.1 7.4 Orbit diameter 3.3 3.5 3.5 3.4 3.3 3.3 3.3 3.3 Interorbital width 4.4 4.0 4.1 3.9 4.1 4.2 4.1 4.4 Upper-jaw length 8.5 7.8 7.9 7.8 7.9 8.4 8.1 8.4 Caudal-peduncle depth 4.7 4.8 4.7 4.5 4.6 4.4 4.6 4.7 Caudal-peduncle length 10.1 10.7 9.9 10.4 10.5 10.0 10.5 9.9 Predorsal length 24.0 24.1 24.3 23.0 22.9 24.4 22.7 23.4 Preanal length 66.0 64.2 66.1 64.5 66.3 65.5 64.3 65.1 First dorsal-fin ray 3.4 4.0 3.9 2.9 2.9 3.3 3.4 3.4 Longest dorsal-fin ray 5.7 5.4 5.6 5.5 5.5 5.8 5.8 5.7 First anal-fin ray 2.5 2.9 2.8 3.5 3.5 3.7 3.2 2.5 Longest anal-fin ray 6.6 6.7 6.6 6.5 7.0 6.5 6.6 6.5 Caudal-fin length 12.3 12.2 12.5 12.3 12.1 12.1 11.6 12.6 Caudal concavity 6.0 6.2 6.5 6.4 5.9 6.2 6.1 5.9 Pectoral-fin length 9.6 9.8 9.6 9.4 9.7 9.4 9.5 9.5 Smithiana Bulletin 9: 21-25 New Ammodytoides species 25 translucent grey, with a prominent black spot distally between dorsal rays 2-4, 7-8, 12-14, 18-19, 24-24 and 27-28; caudal fin with a broad blackish posterior margin except principal and median rays, the dark pigment on distal half of outer rays rays, and one-third of inner rays. Colour when fresh as in Fig. 1 Etymology. This species is named Ammodytoides xanthops from the Greek xanthos for yellow and ops for face, in reference to the dominant yellow colour of the head dorsally and anterior to the eye. Remarks. The holotype is a mature male. It was the only specimen caught by the trawl haul of 19 October 2007. No colour photograph or colour note was made of the 19 specimens that were collected in the trawl haul of 16 October. As mentioned, these 19 fish are fully ripe males and females and may have been reproductively active at the time of capture. Randall et al. (1994: 86- 87) described the spawning of Ammodytoides pylei. The head of some, if not all of the fish, was yellow at this time. The colour of the female holotype of P. pylei was described as follows: "dorsal part of head and nape yellow with dusky markings." The yellow colouration is much more extensive on the head of A. xanthops. Ammodytoides xanthops is clearly distinct from the two other species of the genus known for the western Indian Ocean, A. renniei (Smith) from the east coast of Africa south of 33°S, and A. praematura Randall & Earle, described from one specimen from the Chagos Archipelago. It has fewer dorsal rays and more lateral¬ line scales than A. renniei, and more pectoral rays and lateral-line scales than A. praematura, along with colour differences from both. It is most similar to A. idai Randall & Earle from Papua New Guinea, A. kimurai Ida & Randall from the Ogasawara Islands, and A. pylei Randall, Ida & Earle from the Elawaiian Islands, all of which share a series of black spots at the margin of the dorsal fin, a broad blackish zone in the caudal fin, and essentially the same fin-ray and lateral-line scale counts. Ammodytoides idai and A. pylei have small scales dorsally on the opercle, which are lacking in A. kimurai and A. xanthops. As shown in the key, A. xanthops is differentiated from A. kimurai by having a larger eye, modally 58 compared to 60 vertebrae, and the blackish pigment in the outer part of the caudal fin. ACKNOWLEDGMENTS We are grateful to Tore Stromme and Michel Lambeouf of the United Nations Food and Agriculture Organization for the invitation to join the Mozambique cruise of the R/V Fridtjof Nansen. We thank the captain and the crew for their assistance and tolerance of our collections of marine life, and Oddgier Alvheim for his help in fish photography and logistics. Loreen R. O'Hara took X-rays of the type specimens, and John L. Earle reviewed the manuscript. LITERATURE CITED Bean, T. H. 1895. Description of a new fish Bleekeria gilli. Proceedings of the United States National Museum 17:629-630. Beebe, W. & J. Tee-Van. 1938. Eastern Pacific expeditions of the New York Zoological Society, XV. Seven new marine fishes from Lower California. Zoologica (N.Y.) 23: 299-312. Carpenter, K. E. & V. H. Niem (eds.). 2001. The Living Marine Resources of the Western Central Pacific. Volume 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles, sea turtles, sea snales and marine mammals. Food and Agriculture Organization of the United Nations, Rome. Collette, B. B. & J. E. Randall. 2000. Ammodytoides leptus, a new species of sand lance (Teleostei: Ammodytidae) from Pitcairn Island. Proceedings of the Biological Society of Washington 113: 397-400. Collette, B. B. & D. R. Robertson. 2001. Redescription of Ammodytoides gilli, the tropical eastern Pacific sand lance (Perciformes: Ammodytidae). Revista de Biologia Tropical 49, suppl. 1: 111-115. Dunker, G. &E. Mohr. 1939. Revision der Ammodytidae. Mitteilungen aus dem Zoologischen Museum in Berlin 24: 8-31. Ida, H. & J. E. Randall. 1993. Ammodytoides kimurai, a new species of sand lance (Ammodytidae) from the Ogasawara Islands. Japanese Journal of Ichthyology 40: 147-151. Ida, H., P. Sirimontaporn & S. Monkolprasit. 1994. Comparative morphology of the fishes of the family Ammodytidae, with a description of two new genera and two new species. Zoological Studies 33: 251-277. McCulloch, A. R. & E. R. Waite. 1916. Additions to the fish-fauna of Lord Howe Island. No. 5. Transactions and Proceedings of the Royal Society of South Australia 40:437-451. Pietsch, T. W. & C. P. Zabetian. 1990. Osteology and interrelationships of the sand lances (Teleostei: Ammodytidae). Copeia 1990: 78-100. Randall, J. E. & J. L. Earle. 2008. Two new sandlances of the genus Ammodytoides (Perciformes: Ammodytidae). Pacific Science 62(4): 603-612. Randall, J. E., H. Ida & J. L. Earle. 1994. Ammodytoides pylei, a new species of sand lance (Ammodytidae) from the Hawaiian Islands. Pacific Science. 48: 80- 89. Smith, J. L. B. 1957. Four interesting new fishes from South Africa. South African Journal of Science 53: 219-222. Smithiana Bulletin 9: 21-25 ' ' ' ■ . Ipj ' ■ ISSN 1684-4130 Published by the South African Institute for Aquatic Biodiversity Private Bag 1015, Grahamstown, South Africa, 6140 www.saiab. .ac.za