Ronald Fricke - Academia.edu (original) (raw)

Papers by Ronald Fricke

Zootaxa, 2007

Here we report 59 new records of shore fishes for São Tomé and Príncipe islands (Gulf of Guinea),... more Here we report 59 new records of shore fishes for São Tomé and Príncipe islands (Gulf of Guinea), Eastern Atlantic Ocean. Ten of these are new species still to be described, including a new genus of a gobiid fish that lives in association with an axiid shrimp. A large proportion of the shore fishes of São Tomé and Principe occur on both sides of the Atlantic and many have their sister-species in the western Atlantic. To a lesser degree, there are also affinities to the western Indian Ocean.

... The resulting distribution pattern is tripo-lar; a wide range mainly in the southern Indian O... more ... The resulting distribution pattern is tripo-lar; a wide range mainly in the southern Indian Ocean from East Africa to west of Sumatra and Christmas Island (but lacking in most of Indonesia, northern and western Australia); a small range in southern Taiwan; and another broad ...

Zootaxa, 2018

Two new species of stargazers in the Uranoscopus albesca species-complex of the family Uranoscopi... more Two new species of stargazers in the Uranoscopus albesca species-complex of the family Uranoscopidae are described from Papua New Guinea, which shares among other characters a concave posterodorsal margin of the pectoral fin. Uranoscopus brunneus n. sp. is described from a single specimen from off southwestern New Britain, and is characterised by lower edge of preopercle with 8 spines; labial fimbriae poorly-developed; anterior nostril with a long tubiform valve, posterior nostril a slit-like pore; supracleithrum with a sharp spine at rear end and five small spines inside; dorsoposterior margin of pectoral fin concave; 62 oblique scale-rows along the sides of the body in adult; pectoral-fin membranes dark brown. Uranoscopus kishimotoi n. sp., described from a single specimen from West Sepik Province, is characterised by the lower edge of preopercle with 3 spines; no labial fimbriae; both anterior and posterior nostrils with long tubiform valves; supracleithrum with a sharp spine at ...

BioInvasions Records, 2018

The mottled fusilier Dipterygonotus balteatus is a midwater planktivorous fish, native to the tro... more The mottled fusilier Dipterygonotus balteatus is a midwater planktivorous fish, native to the tropical Indo-Pacific realm. Here we document the first record of five individuals of this species captured in the eastern Mediterranean, off Al Abdeh in Lebanon. Given its small size, inconspicuous appearance, behaviour and also the number of individuals caught, it is suggested that the species may already have been present in the Mediterranean Sea for some time. Because of the proximity to the Suez Canal, Lessepsian migration is a likely mode of entry but transport by ballast water is also another possible pathway.

Mediterranean Marine Science, 2014

A new Lessepsian migrant, Synchiropus sechellensis Regan, 1908 (Teleostei: Callionymidae), was re... more A new Lessepsian migrant, Synchiropus sechellensis Regan, 1908 (Teleostei: Callionymidae), was recorded for the first time by a single male specimen, during bottom trawl operation in the Mediterranean Sea.

Ichthyological Research, 2016

The leptobramid genus Leptobrama, distributed in southern New Guinea and northern Australia, is c... more The leptobramid genus Leptobrama, distributed in southern New Guinea and northern Australia, is characterized by having a short head; a large mouth, with the posterior tip of the upper jaw extending beyond the level of the posterior margin of the eye; a single dorsal fin with four closely set spines, originating posterior to the level of the anal-fin origin; anal fin long, with three spines; pectoral fin short, not reaching to the level of the anus; ctenoid scales small, firmly adherent. The species of Leptobrama are revised taxonomically, and the genus comprises the species Leptobrama muelleri Steindachner 1878 and Leptobrama pectoralis (Ramsay and Ogilby 1887), the latter of which is resurrected herein. The diagnostic characters of these species are as follows: L. muelleri—head 21.7–22.7 % of standard length (SL), snout length 19.9–24.5 % of head length (HL), upper jaw length 53.0–61.3 % HL, vomerine tooth patch rhomboid, tip of pectoral fin almost reaching level of tip of appressed pelvic fin, lateral line gradually curved anteriorly, total gill rakers 13–18, scale rows below lateral line 13–14, prominent black spot distally on anterior dorsal fin; L. pectoralis—head 22.2–25.8 % SL, snout length 16.9–22.6 % HL, upper jaw length 61.8–66.1 % HL, vomerine tooth patch rounded, tip of pectoral fin extending beyond level of tip of appressed pelvic fin, lateral line steeply curved anteriorly, total gill rakers 6–12, scale rows below lateral line 15–18, no black spot distally on anterior dorsal fin.

Scientia Marina, 2011

Protogrammus alboranensis n. sp. is described on the basis of four specimens from the Alboran Sea... more Protogrammus alboranensis n. sp. is described on the basis of four specimens from the Alboran Sea, western Mediterranean Sea. It is characterized within the genus Protogrammus by a total of nine unbranched rays on the second dorsal fin, eight unbranched rays on the anal fin, a very small preopercular spine with an upcurved main tip and one point on the dorsal margin, which is lacking an antrorse spine at the base, the first and second spines of the first dorsal fin filamentous and much longer than the first ray of the second dorsal fin in males, the tip of the last ray of the second dorsal fin reaching beyond the caudal fin base in males, and the anal fin distally black in the males (translucent in females). A key to the species of Protogrammus is presented; the zoogeography of the species is discussed.

The Bulletin of zoological nomenclature., 1990

Marine Biodiversity Records, 2015

The Red Sea record of the Ambon scorpionfishPteroidichthys amboinensisis confirmed based on two s... more The Red Sea record of the Ambon scorpionfishPteroidichthys amboinensisis confirmed based on two specimens collected at Eilat, Israel in 1966 and in 1997. The species is widespread but very rare, known from scattered localities in the Indo-West Pacific, otherwise occurring from India and Indonesia east to Marquesas Islands.