Dimorus

Dimorus (also called Dimorus IV) is the fourth planet in the Dimorus system/Tarod sector which was the homeworld of the Dimorusians, a race of poisonous dart-shooting rodents.

History and specifics

This class M planet lacked an ocean. Complex underground reservoirs of water on Dimorus IV fed dense underbrush and forests throughout the surface. (ST reference: The Worlds of the Federation)

It had at least one moon. Animal lifeforms included six-legged Dimoran butterflies and small four-legged dinosaur-like reptiles with pointed spikes along their backs.

Dimorus was considered a recent discovery in the 2250s. Starfleet oversaw a six-month orbital study, but when results were inconclusive, a seven-member Human survey team visited the surface for three weeks in 2254 to clandestinely observe the natives. (TOS comic: "Gary")

In 2265, the starship USS Enterprise orbited Dimorus and beamed down a landing party. (TOS episode & Star Trek 8 novelization: Where No Man Has Gone Before, TOS - My Brother's Keeper novel: Enterprise)

Most sources reported that the planet was inhabited only by natives. However, the Enterprise visited in response to a distress call from a Federation colony there, in TOS novel: Captain's Peril.

After inspecting a seemingly empty rodent village, the landing party was ambushed by aggressive natives. Pete Rossi was hit by a dart and died within seconds. (TOS - New Visions comic: "Strange New Worlds")

Lieutenant Commander Gary Mitchell was shot with one of the poisonous darts, which was intended for his friend Captain James T. Kirk. (TOS episode & Star Trek 8 novelization: Where No Man Has Gone Before, TOS - My Brother's Keeper novel: Enterprise)

According to a conflicting account, the incident occurred in 2255, not long after Lieutenant Kirk's visit with Tyree on Neural. The USS Farragut responded to a distress call from an anthropological team sent three weeks earlier to study the natives. In this account, the Dimorusians were Human-sized, and the incident was resolved peacefully, with Mitchell cured by the natives. (TOS comic: "Gary")

Several other expeditions have visited Dimorus for botanical laboratory research. (ST reference: The Worlds of the Federation)

The Federation eventually quarantined the planet due to dangers posed by the natives. (ST references: The Worlds of the Federation, Star Trek Maps; FASA RPG module: The Federation)

In 2268, a non-corporeal version of Gary Mitchell re-enacted the poison dart incident as a shared illusion for Leonard McCoy and Spock, with McCoy in the role of Mark Piper. (TOS - New Visions comic: "Strange New Worlds")

In one alternate reality, Kirk was not present during the incident. Three darts hit Mitchell and left him with a permanent limp, enough to deny him further starship duty. A retaliatory strike killed a large number of the natives. (TOS - Myriad Universes - Infinity's Prism novella: A Less Perfect Union)

The incident may not have occurred in the Kelvin timeline. Instead of mentioning it on Delta Vega I as he did in the prime reality, Gary Mitchell showed James T. Kirk illusions of the Iowa bar and taking exams at Starfleet Academy. (TOS - Where No Man Has Gone Before comic: "Part 2")

Appendices

Connections

planets visited by the USS Enterprise (NCC-1701) during Captain Kirk's initial five-year mission (2265-2270)
various	Aprilia III • Capory • Garrus • Rheel • Triangularis III
2265	Earth • Draxis II • Tally • Gamma Alpha V • Pollux II • Starbase 8 planet • Sector Vega 6 planet • M-155 • Archernar IV • Dimorus • Mandylion V • Tendar IV • Mestiko • Alpha Ortelina VII • Arronus VII • Aldebaran III • Delta Vega I • Starbase 12 • Vellurius • Earth • Globular planet • Norus • Junkyard planet • Palnak's planet • Santar • Nova XIII • Zeltok • Korak • the Traveler's homeworld • Dukar • Orthoo • Algenib II
2266	Crucial-3 • Vultra • Robots' planet • Angoma • Mantis planet • Nuofo • Stai • Vrex • Balant planet • Zargot • Coltac • Rigel XII • Alfa 177 • M-113 • Psi 2000 • Tlaoli IV • Skur • Selkye • Taragon • Alpha 332 • Ynobe II • Ecnal • Raylo • Noriga • Alpha Proxima II • Kynardi • Argylus • Ominnus • Earth • K-G • Seggor • Fornia • Angira • Beta II • Neesan • Kujal • Luna • Bwuja • Fayo • Hercula • Earth • Kibo/Ndora • Nraka • Alpha 23-C • Oordon • Mobita • Jodarr • Quodar • Zarta • Floe I • Metamorpha • Inicrust • Morti • Terrellian II • Voodoo planet • Riza homeworld • Mila Xa • Krugar III remnant • Quaraxus • Arima • Mazda • Numero Uno • Beta Carinae • Exo III • 1324-IV • 7348-II • Tantalus V • Miri's homeworld • Planet Q • Benecia
2267	Taurus II • Makus III • Ximega II • Hydra Epsilon III • Perseus Arm planetoid • Yko • Tenkara • Salvum • Grotus • Varanu planet • Yko • Talos IV • Tekton • Rifas-L • Amusement Park planet • Heitius VII • Centaurus V • Fomalhaut V • Emben III • Cynur IV • Tyrtaeus II • Gothos • Beta VI • Theta VII • Ramedes III • Cestus III • Metron planet • Alva • Lazarus's planet • Galaxy Zekbran planet • Cygnet XIV • Earth • Canara • Beta III • Draqqana • Iach'tu Prime • Eminiar VII • Ceti Alpha V • Gamma 400 • Vartax • Dak-Alpha • Thark • Morkol • Timshel • Omicron Ceti III • Janus VI • 7348-II • Chandra IV • Organia • Angrena • Yko • Earth Colony II • Gateway • Earth • Deneva • Janvar • Zentar • Zettin • Diad II • "the Frontier" • Modala • Lado • Gamma Xaridian • Elsinor H-25 • Starbase 10 • Beta Mariotia III • Vega III • Tondus • Tekkor • Carnak • Pyris VII • Earth • Pentam V • Gamma Canaris N • Vandros VII • Nukolee • Styra • Lurota • Oorego IV • Giant Brain asteroid • Otari II • Gateway • Isis III • Not Eden • Maaba S'Ja • Capella IV • Pollux IV • Vulcan • Mestiko • Nador • Tactis II • Beta Nirobi II • Phygma IV • Outpost Omega-70 • Tau Gamma IV • M-370 • Argelius II • Merope IV • Malur • Eulus • Donico II • Gamma Trianguli VI • Masaba • Lekythos • Tyrtaeus II • Shroud IV • Halka • Ixtolde • Gamma Hydra IV • Calydon • Belmara IV • Turan Tot Narut's planet • Gamma Canaris N • Taunus • Planet 656 • Beton III • Sklurr • Karr • Graktan • Plixes • Andrius • Mudd • Earth • Aneher II • Wezonvu • Nalaing • Magna Roma • Bavarya • Neolithia • Mythra • Rimillia • Babel • Gamma Canaris N • Vulcan • Nisus • Certax • Narnel's World • NGC 667 • Neural
2268	Fornax II • Gamma II • Triskelion • Rudimon • Argus X • Tycho IV • Centaurus • Usilde • Theta VII • Signi Beta • Tautee system • Vulcan • Beta Canzandia III • Mevinna • Sigma Iotia II • Xanvia • Xoxxa • Inquisitor planet • Beta Reticuli • Delta Vega • Nalogen IV • Delta Vega • Delta Canaris IV • Alnath II • Ammdon • Arret • Ekos • Eeiauo • Sivao • Kahless • Omega IV • Earth • Theta Kiokis II • Elas • Troyius • Elethia • Alsand • Kos • Tau Delta IX • Amerind • Starbase 14 planet • Andru 4/6 • Tranquility VII • Minos V • Earth • Exo III • T'nufo • Minos V • Eando 375 • Wrigley's Pleasure Planet • Exo III • Tortuga VI • Taos IV • Triacus • Marcos XII • Wokkle III • Cawley IV • Makon III • Kala • Lowaria • Dreamers' planet • Sigma Draconis VI • Moauv • Pomplance • Ribol II • Marpaplu • Direidi • Medusa • Elcidar Beta III • Minara II • Octavius IV • Beta Cabrini • Pegasus IV • Careta IV • Beta XII-A • Platonius • Izell • Earth • Scalos • M-317 • Beta Aurigae III • Sanoora host planet • Rhinegelt • Kalandan outpost • Brellian IV • Prastor • Distrel • Tttnicktttnor • Ariannus • Cheron • Elba II • Sanctuary • Gideon • Tau Omega IV • Tau Omega III • Kolya
2269	Memory Alpha • Merak II • Ardana • Pollux V • Avalon • Balkos III • Nova Atar III • Tarnak II • Meta IV • Vesbius • Janus VI • Pollux II • Leora IV • Beta Niobe III • Mygdalus III • Waasertla • Centaurus • Raga's Planet • Eden • Theta Tau V • Holberg 917G • Lothor • Tau Beta IV • Excalbia • Sarpeidon • Camus II • Duwamish • Ephrata IV • Sigma Niobe II • Gateway • Krasni's Folly • Vestalan • Maltos IV • Organia • Kyros • Nesta • Anomaly • Academy • Yko • Arachnae • Babel • Epsilon Delta IV • Heartland • Memory Prime • Talin IV • Web of Worlds • Syhaar Prime • Gateway • Mantilles • Valeria • Taurus II • Kinshasa • Amusement Park planet • Motherlode • Megas-Tu • Terratin • Sherman's Planet • Verdanis • The Strand • Aarak III • Phi XI • Ur homeworld • Viden • Gobi III • Pacifica • Gralafi • Loren V • Argo • Waycross • Dengella II • Perry • Delta Gamma IV • Trefolg • Lloyd Zeta-9 • Sigma Iotia II • Hesperides I • I'Qos • Circe V • Andoria • Trellisane • Holox • Boaco VI • Juram V • Vancadia • Chyrellka • Veletus V • Patria I • Pelos
2270	Janus VI • Phylos II • Vedala asteroid • Dramia • Dramia II • Arret • Lactra VII • Boqu II • Delta Theta III • Pandro • Briamos • Yko • Belarius IV • Velat Nol/R-836 II • Gelladorn/R-775 I • DT-262 • Belarius IV • Cenotaph • Emilla II • Vehtora IV • Anabarra colony • N'cai • Muldoon • Coridan III • Akladi • Mudd • Kuban • Sarai • Starbase 7 planet • Stella Mudd's planet • Mudd • Taygeta V • Okeanos • Beta Omicron Delta III • Yoondri • Gateway • Zeta Gibraltar • Andros • Yusub • Artemys 314 • Kwettir • Polymax VIII • Hollow Planet • Earth (alternate) • Gateway • Sycorax • Bira III • Njura • Omne's planet • Voran • Razar • Mercan • Aleriad • Aritani • Yalbo • Vulcan • Hoshan planets • Tanis • Aragos planet • Aleph Prime • Aleph III • Antos IV • Takoi homeworld • Earth • Denebia • Veneu II • Gribbin II • Klondike VI • Isitra Zero • Pelos • Archernar IV • Talos IV • Pillagra/R-855 • Earth • Starbase 12 • Tomarii

planets visited by ships named Farragut
Federation Starfleet
	USS Farragut (NCC-1647)	Vulcan • Pilkor III • Neural • Beta Regenis II • Dimorus • Starbase 7 planet • Modala • Tycho IV
	USS Farragut (NCC-1729)	Yko • Signi Beta • Tauteean homeworld • Rigel IV
	USS Farragut (Nebula-class)	Jevalan • Veridian III • Bajor
	USS Farragut (Excelsior-class)	Earth • Cardassia
Kelvin timeline	USS Farragut	Vulcan
Terran Imperial Starfleet (mirror universe)	ISS Farragut	Earth

Iota Pavonis sector block
bordered locations: Iota Pavonis • Alpha Centauri sector block • Federation-Romulan Neutral Zone • Eridan Belt
sector Z-6	Fvillhaih system (Fvillhaih I • Fvillhaih II) • Lirss system (Lirss Prime) • Vhoran system (Vhoran)
sector Z-6	Iconia system	Iconia I • Iconia (Iconia's inner moon • Iconia's outer moon)
Tarod sector Romulan sector/sector 30	Dimorus system (Dimorus • Dimorus II • Dimorus II-A) • Great Bloom/Bassen Rift • K'shan system (K'shan) • Lonco system • Sarita system (Sarita III)
Tarod sector Romulan sector/sector 30	Romulus system	Eisn/Romulus B: I. Aranusia • IIA/B. Romulus/Remus • III. S'latas • IV. D'lanam • V. Ulunam • VI. Trijth
Bolarus sector Bolian/Tango sector	Breshar system • Ch'menira system • Llaiir system • NGC 1218 • Ponor system • Rashana system • system Y
Bolarus sector Bolian/Tango sector	Bolarus system	I. Se'ka • II. Krith • III. Bol'tur • First Bolarus asteroid belt • IV. Harmar • V. Bolin • VI. Tha'lat • VII. Ral'nar • Second Bolarus asteroid belt • VIII. Sol'nar • IX. Bolarus IX • X. Motal • XI. Sernar • XII. Sath • XIII. Ki'siu
Devron sector	Aihai system • Cero system • Delta Corvi system • Devron system • Fitzan system • Hobus system

Appearances

TOS comic: "Gary"
TOS - My Brother's Keeper novel: Enterprise
TOS novel: Captain's Peril
TOS - New Visions comic: "Strange New Worlds"

References

TOS episode & Star Trek 8 novelization: Where No Man Has Gone Before
ST reference: Star Trek Maps
ST reference: The Worlds of the Federation
FASA RPG module: The Federation
TOS - My Brother's Keeper novel: Constitution
TOS - Myriad Universes - Infinity's Prism novella: A Less Perfect Union

External link

Dimorus article at Memory Alpha, the wiki for canon Star Trek.

Memory Beta, non-canon Star Trek Wiki