WorldCat Identities

Hobbs, Horton H. (Horton Holcombe) 1914-1994

Overview
Works: 81 works in 305 publications in 3 languages and 10,182 library holdings
Genres: Classification  Identification guides 
Roles: Author, Translator, Editor
Classifications: QL1, 591.08 S
Publication Timeline
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Most widely held works by Horton H Hobbs
A comparative study of functional morphology of the male reproductive systems in the Astacidea with emphasis on the freshwater crayfishes (Crustacea:Decapoda) by Horton H Hobbs( Book )

8 editions published in 2007 in English and Polish and held by 426 WorldCat member libraries worldwide

This study of the functional morphology of the male reproductive system in astacidean crustaceans has allowed for comparisons of representatives of the superfamilies Parastacoidea, Enoplometopoidea, Nephropoidea, and the Astacoidea with a focus on the crayfishes. Tissues from the testes and (to the extent possible) vasa deferentia were prepared for light and scanning electron microscopy and specimens of the following families were used: Parastacidae -- Parastacoides tasmanicus tasmanicus, Astacopsis franklinii, Parastacus nicoleti; Enoplometopidae -- Enoplometopus occidentalis; Nephropidae -- Homarus americanus; Astacidae -- Pacifastacus leniusculus trowbridgii; Cambaridae -- Cambaroides japonicus, Cambaroides similis, Cambarus (Puncticambarus) acuminatus, C. (Hiaticambarus) longulus, Procambarus (Ortmannicus) fallax, P. (O.) zonangulus, P. (Scapulicambarus) paeninsulanus, and Orconectes (Procericambarus) rusticus. The single organ testis is "H-shaped" in members of the Parastacoidea, Enoplometopoidea, and Nephropoidea and consists of a pair of longitudinal lobes, each composed of an anterior and posterior lobule joined by a transverse commissure or bridge. The derived "Y-shaped" pattern of the testis of the Astacoidea is trilobed and consists of a pair of anterior lobules and a median posterior lobule that in most adult Cambaridae are joined by a trifurcate, constricted stalk, a structure that is lacking in the Cambaroidinae and Astacidae. The sac-like acini lie in the axes of the testicular lobules and produce spermatozoa. As spermatogenesis proceeds, each acinus becomes larger and, with spermiogenesis and the expulsion of spermatozoa into the collecting ducts, undergoes one or two of three fates: (1) acinus regeneration occurs and another cycle of sperm production ensues (adopted exclusively by the Astacidae and Cambaroidinae); (2) secondary acini develop in the wall of existing acini, converting the primary acinus into a passageway to the collecting tubules; or (3) the acinus degenerates and new acini arise from collecting tubules (employed only by the Cambarinae and Cambarellinae). The first and second fates have been adopted by the Parastacoidea, the Enoplometopoidea, and the Nephropoidea. In the Cambarinae and Cambarellinae, the germinal cells are recognizable only in the acinar buds from the collecting tubules and when they assume the role of spermatogonia; they are not evident along the lengths of the tubules nor are they present within an acinus after the onset of spermatogenesis. In all other astacideans examined, the germinal cells seem always to be present in the collecting tubules. Additionally, they appear in the walls of acini by the time the spermatogenic elements are being converted to spermatids, frequently forming clusters, the primordia of secondary acini in the Parastacoidea, the Nephropoidea, and occasionally the Enoplometopoidea. Germinal cells may be disposed in a partial layer or scattered within the walls of an acinus and constitute the initial spermatogonia of a new cycle of sperm production. This is what occurs in the acini of the Astacidae, Cambaroidinae, Parastacoidea, Nephropoidea, and Enoplometopoidea
The crayfishes of Georgia by Horton H Hobbs( Book )

8 editions published in 1981 in English and held by 358 WorldCat member libraries worldwide

The entocytherid ostracods of North Carolina by Horton H Hobbs( Book )

5 editions published in 1977 in English and held by 358 WorldCat member libraries worldwide

A checklist of the North and Middle American crayfishes (Decapoda: Astacidae and Cambaridae) by Horton H Hobbs( Book )

14 editions published between 1974 and 1980 in English and held by 343 WorldCat member libraries worldwide

New crayfishes (Decapoda, Cambaridae) from the Southern United States and Mexico by Horton H Hobbs( Book )

14 editions published between 1975 and 1976 in English and held by 342 WorldCat member libraries worldwide

Synopsis of the families and genera of crayfishes (Crustacea: Decapoda) by Horton H Hobbs( Book )

10 editions published in 1974 in English and held by 341 WorldCat member libraries worldwide

A review of the crayfish genus Astacoides (Decapoda:Parastacidae) by Horton H Hobbs( Book )

13 editions published between 1986 and 1987 in English and held by 336 WorldCat member libraries worldwide

A review of the troglobitic decapod crustaceans of the Americas by Horton H Hobbs( Book )

8 editions published in 1977 in English and held by 333 WorldCat member libraries worldwide

On the troglobitic shrimps of the Yucatán Peninsula, Mexico (Decapoda, Atyidae and Palaemonidae) by H. H Hobbs( Book )

13 editions published in 1976 in English and Spanish and held by 331 WorldCat member libraries worldwide

Three new crustaceans from La Media Luna, San Luis Potosí, Mexico by Alejandro Villalobos-Figueroa( Book )

9 editions published in 1974 in English and held by 327 WorldCat member libraries worldwide

Akylocythere barbouri, Procambarus roberti, Palaemonetes lindsayi
New entocytherid ostracods with a key to the genera of the subfamily Entocytherinae by Horton H Hobbs( Book )

8 editions published in 1970 in English and held by 327 WorldCat member libraries worldwide

The entocytherid ostracods of Mexico and Cuba by Horton H Hobbs( Book )

9 editions published in 1971 in English and held by 327 WorldCat member libraries worldwide

Origins and affinities of the troglobitic crayfishes of North America (Decapoda: Astacidae) by Horton H Hobbs( Book )

12 editions published in 1972 in English and Undetermined and held by 321 WorldCat member libraries worldwide

The subgenera of the crayfish genus Procambarus (Decapoda: Astacidae) by Horton H Hobbs( Book )

9 editions published in 1972 in English and held by 321 WorldCat member libraries worldwide

New and little-known crayfishes of the virilis section of the genus Orconectes (Decapoda : Cambaridae) from the Southeastern United States by Martha R Cooper( Book )

10 editions published in 1980 in English and held by 320 WorldCat member libraries worldwide

The freshwater and terrestrial decapod crustaceans of the West Indies with special reference to Dominica by Fenner Albert Chace( Book )

12 editions published in 1969 in English and Undetermined and held by 308 WorldCat member libraries worldwide

The original objective of this study was to describe the abundant but little-known freshwater and terrestrial decapod crustaceans of Dominica. However, it became apparent that even with intensive collecting it was hardly possible to reveal every species that might occur on that island. To lend completeness to the Dominican coverage and make the study useful to biologists interested in the faunas of other islands, 92 species known from all of the West Indies were included to offer a provisional handbook of the decapods that may occur naturally in reduced salinities or above the high-tide line on any of the island from Bermuda to Trinidad and throughout the Caribbean Seas
A new subgenus and two new species of crayfishes of the genus Cambarus (Decapoda, Cambaridae) from the southeastern United States by Raymond W Bouchard( Book )

12 editions published between 1975 and 1976 in English and Spanish and held by 307 WorldCat member libraries worldwide

Crayfishes (Astacidae) of North and Middle America by Horton H Hobbs( Book )

11 editions published between 1972 and 1976 in English and held by 292 WorldCat member libraries worldwide

The entocytherid ostracod fauna of southeastern Georgia by Margaret D Andolshek( Book )

12 editions published in 1986 in English and held by 277 WorldCat member libraries worldwide

The shrimp genus Atya (Decapoda:Atyidae) by Horton H Hobbs( Book )

9 editions published in 1982 in English and held by 260 WorldCat member libraries worldwide

 
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Alternative Names
Hobbs, H. H.

Hobbs, H.H. 1914-1994

Hobbs, H. H. jr

Hobbs, Horton H.

Hobbs, Horton H. 1914-

Hobbs, Horton H. 1914-1994

Hobbs, Horton H. 1914-1994 Jr

Hobbs, Horton H. Jr. 1914-1994

Hobbs, Horton H. ml

Hobbs, Horton Holcombe

Hobbs, Horton Holcombe, 1914-1994

Hobbs, Horton Holcombe 1914-1994 Jr

Hobbs, Horton Holcombe Jr. 1914-1994

Hobbs, Horton Holcombe Jr., Zoologe 1914-1994

Holcombe-Hobbs, Horton 1914-1994

Horton H. Hobbs, Jr. Amerikaans zoöloog (1914-1994)

Horton Holcombe Hobbs

Languages
English (205)

Spanish (2)

Polish (1)